Math Homework Answers - Recent questions and answers
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Powered by Question2AnswerAnswered: write a two column proof to prove the following. If AB=PQ and PQ=RS, then AB=RS.
https://www.mathhomeworkanswers.org/255238/write-two-column-proof-prove-the-following-and-pq-rs-then-ab-rs?show=255248#a255248
<table border="1" cellpadding="1" cellspacing="1" style="width:500px">
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<td>1. AB=PQ</td>
<td>AB and PQ are the same length which we can call x units.</td>
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<td>2. PQ=RS</td>
<td>PQ and RS are the same length, so RS has length x units.</td>
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<td>3. AB=RS QED</td>
<td>Since RS is x units long and AB is also x units long, AB is the same length as RS.</td>
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</tbody>
</table>
<p> </p>Geometry Answershttps://www.mathhomeworkanswers.org/255238/write-two-column-proof-prove-the-following-and-pq-rs-then-ab-rs?show=255248#a255248Sun, 21 Oct 2018 11:54:32 +0000Answered: For h > 0, find the slope of the line through the points ( h, | h | ) and ( 0,0 )
https://www.mathhomeworkanswers.org/255233/for-h-0-find-the-slope-of-the-line-through-the-points-h-h-and-0-0?show=255245#a255245
<p style="text-align: justify;">(a) when h>0, |h|=h so the gradient is (1-0)/(1-0)=1</p>
<p style="text-align: justify;">(b) when h<0, |h|=-h so the gradient is (1-0)/(-1-0)=-1</p>
<p style="text-align: justify;">(c) the three limits in order are -1 (because h<0), 1 and undefinable because the left hand and right hand limits are not the same.</p>Calculus Answershttps://www.mathhomeworkanswers.org/255233/for-h-0-find-the-slope-of-the-line-through-the-points-h-h-and-0-0?show=255245#a255245Sun, 21 Oct 2018 09:05:11 +0000Answered: Use the function f defined by the graph in Fig. 14 to determine the following limits.
https://www.mathhomeworkanswers.org/255232/function-defined-the-graph-determine-the-following-limits?show=255244#a255244
<p style="text-align: justify;">(a), (b), (c)=1 because we are not interested in the hole at x=2 and the graph approaches f(x)=1 from both sides.</p>
<p style="text-align: justify;">(d), (e), (f)=1 because of continuity</p>
<p style="text-align: justify;">(g), (h), (i)=1 because of continuity</p>Calculus Answershttps://www.mathhomeworkanswers.org/255232/function-defined-the-graph-determine-the-following-limits?show=255244#a255244Sun, 21 Oct 2018 08:58:45 +0000Answered: The Chan’s electric bill for September was $40.70 which included a tax of $1.98. If the Chan’s used 320 kilowatts per hour of electricity that month, find the cost per kilowatt-hour.
https://www.mathhomeworkanswers.org/255234/electric-september-included-kilowatts-electricity-kilowatt?show=255243#a255243
<p style="text-align: justify;">Take off the tax: 40.70-1.98=$38.72. So 320kWh (it couldn’t be kW/h, because that would be astronomical over a month!) cost $38.72 and 1kWh=$38.72/320=$0.121 or about 12c per kWh.</p>Algebra 1 Answershttps://www.mathhomeworkanswers.org/255234/electric-september-included-kilowatts-electricity-kilowatt?show=255243#a255243Sun, 21 Oct 2018 08:50:17 +0000Answered: Use the functions f and g defined by the graphs in Fig. 10 to determine the following limits. a. lim x→2 f(x).g(x) b. lim x→2 f( g(x) )
https://www.mathhomeworkanswers.org/255229/use-functions-defined-graphs-determine-following-limits-lim?show=255242#a255242
<p style="text-align: justify;">a.</p>
<p style="text-align: justify;">Lim x→2 f(x)=1, g(x)=¾, f(x).g(x)=1×¾=¾, but the value of g(x) is estimated from appearance.</p>
<p style="text-align: justify;">b.</p>
<p style="text-align: justify;">Lim x→2 g(x)=¾, f(g(x))=f(¾)=? because we don’t know more about f(x) as a function, except that f(¾)<2.</p>Calculus Answershttps://www.mathhomeworkanswers.org/255229/use-functions-defined-graphs-determine-following-limits-lim?show=255242#a255242Sun, 21 Oct 2018 08:41:48 +0000Answered: Solve -5/6÷2/9
https://www.mathhomeworkanswers.org/255236/solve-5-6-2-9?show=255241#a255241
<p style="text-align: justify;">-(5/6)÷(2/9)=-(5/6)(9/2)=-(5/2)(9/6)=-(5/2)(3/2)=-15/4</p>Pre-Algebra Answershttps://www.mathhomeworkanswers.org/255236/solve-5-6-2-9?show=255241#a255241Sun, 21 Oct 2018 08:25:57 +0000Answered: 35 ribbons. There are 3 more white than red and 1 less blue. How many of each kind?Word problem
https://www.mathhomeworkanswers.org/255235/ribbons-there-more-white-than-less-blue-many-each-kind-problem?show=255240#a255240
<p style="text-align: justify;">If R is the number of red ribbons then the number of white ribbons is R+3 and the number of blue ribbons is R-1. There are 35 ribbons altogether so R+R+3+R-1=35, 3R+2=35, 3R=33, so The number of red=11, making the number of white 11+3=14 and the number of blue=11-1=10.</p>Word Problem Answershttps://www.mathhomeworkanswers.org/255235/ribbons-there-more-white-than-less-blue-many-each-kind-problem?show=255240#a255240Sun, 21 Oct 2018 08:23:58 +0000Answered: Write a two column proof. If ZY=3XY, then ZX=4XY
https://www.mathhomeworkanswers.org/255237/write-a-two-column-proof-if-zy-3xy-then-zx-4xy?show=255239#a255239
<table border="1" cellpadding="1" cellspacing="1" style="width:500px">
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<td>1. ZX=ZY+YX</td>
<td>Segment ZX is made up of two adjacent segments ZY and YX</td>
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<td>2. ZY=3XY</td>
<td>Given</td>
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<td>3. YX≡XY</td>
<td>Length X→Y is the same as length Y→X, so YX and XY are equivalent</td>
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<td>
<p>4. ZX=3XY+XY=4XY</p>
<p style="text-align:center">QED</p>
</td>
<td>Rewrite 1 substituting for ZY and using the equivalence of XY and YX</td>
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</tbody>
</table>
<p><img alt="" src="https://www.mathhomeworkanswers.org/?qa=blob&qa_blobid=16707170592517386757" style="height:150px; width:350px"></p>Geometry Answershttps://www.mathhomeworkanswers.org/255237/write-a-two-column-proof-if-zy-3xy-then-zx-4xy?show=255239#a255239Sun, 21 Oct 2018 08:17:04 +0000Label the parts of the graph of f (Fig. 13) which are described by
https://www.mathhomeworkanswers.org/255231/label-the-parts-of-the-graph-of-f-fig-13-which-are-described-by
<p><img alt="" src="https://www.mathhomeworkanswers.org/?qa=blob&qa_blobid=2716959427022168017" style="height:119px; width:384px"></p>
<p> </p>
<p><img alt="" src="https://www.mathhomeworkanswers.org/?qa=blob&qa_blobid=3071704796757240771" style="height:198px; width:167px"></p>
<p>please include some explanation if possible.Thanks</p>Calculus Answershttps://www.mathhomeworkanswers.org/255231/label-the-parts-of-the-graph-of-f-fig-13-which-are-described-bySat, 20 Oct 2018 16:47:33 +0000Use the functions f and g defined by the graphs in Fig. 10 to determine the following limits. a. lim x→2 x•h(x – 1) b. lim x→2 h(3+x)-(3) / x
https://www.mathhomeworkanswers.org/255230/use-functions-defined-graphs-determine-the-following-limits
<p>Use the functions f and g defined by the graphs in Fig. 10 to determine the following limits.</p>
<p>a. lim x<span style="color:rgb(34, 34, 34); font-family:arial,sans-serif; font-size:small">→2</span> x<span style="color:rgb(34, 34, 34); font-family:arial,sans-serif; font-size:small">•</span>h(x – 1) b. lim x<span style="color:rgb(34, 34, 34); font-family:arial,sans-serif; font-size:small">→2 h(3+x)-(3)</span> / x</p>
<p> </p>
<p><img alt="" src="https://www.mathhomeworkanswers.org/?qa=blob&qa_blobid=9909010235062876251" style="height:192px; width:214px"></p>
<p>please include computation and some explanation.Thanks</p>Calculus Answershttps://www.mathhomeworkanswers.org/255230/use-functions-defined-graphs-determine-the-following-limitsSat, 20 Oct 2018 16:40:52 +0000Answered: The amount of eye makeup Leah wears is 5/8 of the amount of eye makeup Tanya wears what is the ratio of the amount of eye makeup Leah wears to the amount of eye makeup Tanya wears
https://www.mathhomeworkanswers.org/247237/amount-makeup-amount-makeup-ratio-amount-makeup-amount-makeup?show=255228#a255228
5/8:1Word Problem Answershttps://www.mathhomeworkanswers.org/247237/amount-makeup-amount-makeup-ratio-amount-makeup-amount-makeup?show=255228#a255228Sat, 20 Oct 2018 16:29:09 +0000Answered: Write a two column proof. If ZY=3XY, then ZX=4XY
https://www.mathhomeworkanswers.org/255206/write-a-two-column-proof-if-zy-3xy-then-zx-4xy?show=255227#a255227
<table border="1" cellpadding="1" cellspacing="1" style="width:500px">
<tbody>
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<td>1. ZX=ZY+YX</td>
<td>Segment ZX is made up of two adjacent segments ZY and YX</td>
</tr>
<tr>
<td>2. ZY=3XY</td>
<td>Given</td>
</tr>
<tr>
<td>3. YX≡XY</td>
<td>Length X→Y is the same as length Y→X, so YX and XY are equivalent</td>
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<td>
<p>4. ZX=3XY+XY=4XY</p>
<p style="text-align: center;">QED</p>
</td>
<td>Rewrite 1 substituting for ZY and using the equivalence of XY and YX</td>
</tr>
</tbody>
</table>
<p><img alt="" src="https://www.mathhomeworkanswers.org/?qa=blob&qa_blobid=16707170592517386757" style="height:150px; width:350px"></p>Geometry Answershttps://www.mathhomeworkanswers.org/255206/write-a-two-column-proof-if-zy-3xy-then-zx-4xy?show=255227#a255227Sat, 20 Oct 2018 14:33:38 +0000Answered: 8.279318209 round to the nearest gallon
https://www.mathhomeworkanswers.org/255208/8-279318209-round-to-the-nearest-gallon?show=255213#a255213
<p style="text-align: justify;">If this is an amount in gallons, the nearest gallon is 8 gallons.</p>Algebra 1 Answershttps://www.mathhomeworkanswers.org/255208/8-279318209-round-to-the-nearest-gallon?show=255213#a255213Sat, 20 Oct 2018 07:40:39 +0000Answered: 1+1+1+1+1+1+1+1+1+1x0+1?
https://www.mathhomeworkanswers.org/90565/1-1-1-1-1-1-1-1-1-1x0-1?show=255207#a255207
The answer is one because 1 * 10 = 10. Times 0 = 0. Plus 1 = 1.order of operationshttps://www.mathhomeworkanswers.org/90565/1-1-1-1-1-1-1-1-1-1x0-1?show=255207#a255207Sat, 20 Oct 2018 03:23:18 +0000Answered: What are the next three numbers in the pattern: 2, -4, 6, -8, 10
https://www.mathhomeworkanswers.org/255201/what-are-the-next-three-numbers-in-the-pattern-2-4-6-8-10?show=255204#a255204
<p style="text-align: justify;">Yes, I would agree.</p>Geometry Answershttps://www.mathhomeworkanswers.org/255201/what-are-the-next-three-numbers-in-the-pattern-2-4-6-8-10?show=255204#a255204Fri, 19 Oct 2018 21:12:26 +0000Answered: x^2+3=39, then x?
https://www.mathhomeworkanswers.org/255200/x-2-3-39-then-x?show=255203#a255203
<p style="text-align: justify;">x²+3=39, x²=39-3=36, or x²-36=0=(x-6)(x+6) so x=6 or -6.</p>Other Math Topicshttps://www.mathhomeworkanswers.org/255200/x-2-3-39-then-x?show=255203#a255203Fri, 19 Oct 2018 21:07:33 +0000Answered: what is the answer to X/7 > 800
https://www.mathhomeworkanswers.org/102772/what-is-the-answer-to-x-7-800?show=255199#a255199
the sum of a number and 7, divided by -3, is 2Pre-Algebra Answershttps://www.mathhomeworkanswers.org/102772/what-is-the-answer-to-x-7-800?show=255199#a255199Fri, 19 Oct 2018 18:15:21 +0000Answered: 40° + 50° + a + c + b
https://www.mathhomeworkanswers.org/255188/40%C2%B0-50%C2%B0-a-c-b?show=255195#a255195
<p style="text-align: justify;">You have submitted an expression. Is there an equation?</p>
<p style="text-align: justify;">I’m guessing that pronumerals a, b and c are side lengths.</p>
<p style="text-align: justify;">If 40° and 50° are angles in triangle ABC, then it is a right triangle such that c²=a²+b², where angle C is the right angle. Therefore if we know a, b or c we can find the other sides using trigonometry. We can’t find any side lengths without knowing what one of them is. We can use sin40 or cos40 to find side lengths.</p>
<p style="text-align: justify;">If a, b and c are angles we need a picture and at least one equation to show what’s going on.</p>Trigonometry Answershttps://www.mathhomeworkanswers.org/255188/40%C2%B0-50%C2%B0-a-c-b?show=255195#a255195Fri, 19 Oct 2018 11:19:32 +0000Answered: One positive integer is 3 3 less than twice another. The sum of their squares is 954 954 . Find the integers.
https://www.mathhomeworkanswers.org/255175/positive-integer-less-twice-another-their-squares-integers?show=255185#a255185
<p style="text-align: justify;">Let one integer be x then the other is 2x-3.</p>
<p style="text-align: justify;">Sum of their squares is 954, so x²+(2x-3)²=954.</p>
<p style="text-align: justify;">Therefore, x²+4x²-12x+9=954, 5x²-12x-945=0.</p>
<p style="text-align: justify;">945=3³×5×7, so we can work out the factors in pairs:</p>
<p style="text-align: justify;">(3,315), (5,189), (7,135), (9,105), (15,63), (21,45), (27,35).</p>
<p style="text-align: justify;">We can see that 5×15-63=12, so we can factorise: (5x+63)(x-15)=0. The only positive zero is x=15, so the integers are 15 and 2x-3=27.</p>
<p style="text-align: justify;">Check: 15²+27²=225+729=954. OK.</p>Word Problem Answershttps://www.mathhomeworkanswers.org/255175/positive-integer-less-twice-another-their-squares-integers?show=255185#a255185Fri, 19 Oct 2018 08:07:14 +0000Answered: Write the equivalent fraction, the reduced fraction, and the decimal equivalent for 45%. Jenny solved this problem and her work is shown below. What mistake did she make?
https://www.mathhomeworkanswers.org/208240/equivalent-fraction-fraction-decimal-equivalent-problem?show=255178#a255178
<p><span style="background-color:rgb(217, 236, 240); color:rgb(34, 34, 34); font-family:georgia; font-size:15px">The decimal equivalent is not correct. The decimal point is in the wrong position. The decimal point should be to the left of the 4, so the correct answer is 0.45.</span></p>Pre-Algebra Answershttps://www.mathhomeworkanswers.org/208240/equivalent-fraction-fraction-decimal-equivalent-problem?show=255178#a255178Fri, 19 Oct 2018 06:11:16 +0000Answered: Adalyn is stocking up on cans of soup for the winter they are on sale for $2.25 each and she has a coupon for $3 coupon if she can spend no more than $30 on soup how many cans can she buy.
https://www.mathhomeworkanswers.org/255172/adalyn-stocking-winter-sale-each-coupon-coupon-spend-than-soup?show=255174#a255174
<p style="text-align: justify;">Let x be the number of cans then the cost of x cans is 2.25x dollars.</p>
<p style="text-align: justify;">The coupon is worth $3 so we can add this to the maximum $30 to make $33, which is the actual limit of her spending. Therefore 2.25x≤33 and x≤33/2.25. $2.25 can be written as $2¼ or $9/4. So x≤33×4/9, x≤11×4/3, x≤44/3, x≤14⅔. Since x must be a whole number, which is less than 14⅔, x must be 14 at most. So she can buy 14 cans of soup. 14×2.25=$31.50, but the coupon gives her a discount of $3 so she only has to pay $28.50. (Note that she can’t buy another can because she would go over budget by $0.75.)</p>Word Problem Answershttps://www.mathhomeworkanswers.org/255172/adalyn-stocking-winter-sale-each-coupon-coupon-spend-than-soup?show=255174#a255174Thu, 18 Oct 2018 23:38:54 +0000Answered: If a woman making $20 an hour gets a 10% raise, how much will she now make in an 8 hour work day?
https://www.mathhomeworkanswers.org/255170/woman-making-hour-gets-raise-much-will-now-make-hour-work-day?show=255173#a255173
<p style="text-align: justify;">In an 8-hour day she earns 8×20=$160, and if she gets a 10% raise that will add 160/10=$16 to her day’s pay making $176.</p>Word Problem Answershttps://www.mathhomeworkanswers.org/255170/woman-making-hour-gets-raise-much-will-now-make-hour-work-day?show=255173#a255173Thu, 18 Oct 2018 23:23:30 +0000Answered: 20 tickets is worth $40 and 60 tickets is worth $70 how much is one ticket
https://www.mathhomeworkanswers.org/255169/tickets-worth-%2440-and-tickets-worth-%2470-how-much-is-one-ticket?show=255171#a255171
<p style="text-align: justify;">20 tickets worth $40, one ticket would be 40/20=$2.</p>
<p style="text-align: justify;">60 tickets worth $70, one ticket would be 70/60=7/6=$1⅙ which is about $1.17.</p>Algebra 1 Answershttps://www.mathhomeworkanswers.org/255169/tickets-worth-%2440-and-tickets-worth-%2470-how-much-is-one-ticket?show=255171#a255171Thu, 18 Oct 2018 23:12:16 +0000If JL = 5, then ML = what?
https://www.mathhomeworkanswers.org/255168/if-jl-5-then-ml-what
Given isosceles JKL with base Jl, find each valueGeometry Answershttps://www.mathhomeworkanswers.org/255168/if-jl-5-then-ml-whatThu, 18 Oct 2018 20:59:22 +0000Answered: Cubic with 1 real zero and a>0
https://www.mathhomeworkanswers.org/255126/cubic-with-1-real-zero-and-a-0?show=255166#a255166
<p style="text-align:justify"><img alt="" src="https://www.mathhomeworkanswers.org/?qa=blob&qa_blobid=12463340552100534706" style="height:366px; width:400px"></p>
<p style="text-align:justify">This is the graph of 2x³-2x²+x-1. The curve cuts the x-axis once for the real zero at x=1. The other zeroes are complex (imaginary) so the curve doesn’t intersect the x-axis for these.</p>Algebra 2 Answershttps://www.mathhomeworkanswers.org/255126/cubic-with-1-real-zero-and-a-0?show=255166#a255166Thu, 18 Oct 2018 12:34:09 +0000Answered: what is the cubic function with the given zeros; √6, -√6, -3
https://www.mathhomeworkanswers.org/255140/what-is-the-cubic-function-with-the-given-zeros-%E2%88%9A6-%E2%88%9A6-3?show=255164#a255164
<p style="text-align: justify;">(x-√6)(x+√6)(x+3)=(x²-6)(x+3)=x³+3x²-6x-18, answer 2.</p>Calculus Answershttps://www.mathhomeworkanswers.org/255140/what-is-the-cubic-function-with-the-given-zeros-%E2%88%9A6-%E2%88%9A6-3?show=255164#a255164Thu, 18 Oct 2018 12:11:27 +0000Answered: Show me how to divide 988 by 96 please
https://www.mathhomeworkanswers.org/255138/show-me-how-to-divide-988-by-96-please?show=255163#a255163
<p style="text-align: justify;"> <span style="text-decoration: underline;">10</span></p>
<p style="text-align: justify;">96)988</p>
<p style="text-align: justify;"> -<span style="text-decoration: underline;">96</span></p>
<p style="text-align: justify;"> 28 remainder</p>
<p style="text-align: justify;">Yes, your logic is right. 96 goes into 28 zero times.</p>
<p style="text-align: justify;">Look at it this way: 10×96+28=960+28=988.</p>Other Math Topicshttps://www.mathhomeworkanswers.org/255138/show-me-how-to-divide-988-by-96-please?show=255163#a255163Thu, 18 Oct 2018 12:02:17 +0000Answered: 3-69. For each of the following problems, use a hundredths grid if needed. Write both a fraction and a decimal equation with your answer. (0.3)(0.6) (0.5)(−0.4) −0.2 · −0.7
https://www.mathhomeworkanswers.org/255135/following-problems-hundredths-fraction-decimal-equation?show=255161#a255161
<p style="text-align:justify">(0.3)(0.6)=0.18; also (3/10)(6/10)=18/100=9/50</p>
<p style="text-align:justify">(0.5)(-0.4)=-(0.5)(0.4)=-0.20; also -(1/2)(2/5)=-1/5</p>
<p style="text-align:justify">-0.2∙-0.7=(-0.2)(-0.7)=+(0.2)(0.7)=0.14; also (1/5)(7/10)=7/50</p>
<p style="text-align:justify">On a hundredth grid you can measure a rectangle with one number as the length and the other as the width. The number of squares inside the rectangle gives you the answer in hundredths. So, for example, in the first question measure out a rectangle 3 tenths by 6 tenths. The rectangle will contain 18 squares, that is, 18 hundredths.</p>Other Math Topicshttps://www.mathhomeworkanswers.org/255135/following-problems-hundredths-fraction-decimal-equation?show=255161#a255161Thu, 18 Oct 2018 11:54:51 +0000Answered: 965 divied by 17
https://www.mathhomeworkanswers.org/255134/965-divied-by-17?show=255159#a255159
<p style="text-align: justify;">To estimate, round 17 up to 20 and round 965 up to 1000. When we divide we get 50. So that’s the estimate. Now divide 965 by 17:</p>
<p style="text-align: justify;"> <span style="text-decoration: underline;">56</span></p>
<p style="text-align: justify;">17)965</p>
<p style="text-align: justify;"> -<span style="text-decoration: underline;">85</span></p>
<p style="text-align: justify;"> 115</p>
<p style="text-align: justify;"> - <span style="text-decoration: underline;">102</span> </p>
<p style="text-align: justify;"> 13 remainder</p>
<p style="text-align: justify;">56 remainder 13.</p>Algebra 1 Answershttps://www.mathhomeworkanswers.org/255134/965-divied-by-17?show=255159#a255159Thu, 18 Oct 2018 11:48:35 +0000Answered: Find the discontinuities of the function and prove that these discontinuities exist.
https://www.mathhomeworkanswers.org/255133/discontinuities-function-prove-these-discontinuities-exist?show=255158#a255158
<p style="text-align:justify">The discontinuities come from tan(x). Tan(90°)=tan(π/2) is undefined, likewise any odd integer multiple of this, so this where the discontinuity lies. Any expression involving tan will be affected. So x=(2n+1)π/2, where n is any integer, is where the discontinuities occur.</p>Calculus Answershttps://www.mathhomeworkanswers.org/255133/discontinuities-function-prove-these-discontinuities-exist?show=255158#a255158Thu, 18 Oct 2018 11:39:48 +0000Answered: Find the area under the standard normal distribution curve between z=-1 and z=-3
https://www.mathhomeworkanswers.org/255132/find-area-under-standard-normal-distribution-curve-between?show=255157#a255157
<p style="text-align:justify">N(-Z)=1-N(Z), so N(-1)=1-N(1) and N(-3)=1-N(3). So the difference is 1-N(1)-(1-N(3)) = 1-N(1)-1+N(3) = N(3)-N(1).</p>
<p style="text-align:justify">Use the table to find these values: 0.9987-0.8413=0.1574.</p>Statistics Answershttps://www.mathhomeworkanswers.org/255132/find-area-under-standard-normal-distribution-curve-between?show=255157#a255157Thu, 18 Oct 2018 11:31:59 +0000Answered: A rectangle stone has a width of 4/5 inch and an area of 7/10 square inch. Is a silver wire with a length of 3 1/2 inches long enough to outline the stone?
https://www.mathhomeworkanswers.org/255139/rectangle-stone-square-silver-length-inches-enough-outline?show=255156#a255156
<p style="text-align: justify;">We find the length by dividing the area by the width=7/10÷4/5=7/10×5/4=7/8 in.</p>
<p style="text-align: justify;">The perimeter (outline) is 2(4/5+7/8)=67/20=3+7/20. We subtract this from 3+½, and we have 1/2-7/20=3/20.</p>
<p style="text-align: justify;">This is a positive number. This means that the wire is longer than the outline of the stone, so, yes, it will outline it.</p>Word Problem Answershttps://www.mathhomeworkanswers.org/255139/rectangle-stone-square-silver-length-inches-enough-outline?show=255156#a255156Thu, 18 Oct 2018 11:25:06 +0000Answered: order pediaprophen 10 mg/kg PO q4h the label reads 100 mg/2.5ml. the child weighs 35 lbs how many milliliters will you admister
https://www.mathhomeworkanswers.org/255150/order-pediaprophen-reads-child-weighs-milliliters-admister?show=255155#a255155
<p style="text-align: justify;">First convert the child’s weight into kg. 1lb=454g approx. 35lb=15.88kg approx.</p>
<p style="text-align: justify;">1kg requires 10mg, so 15.88kg require 158.8mg. 100mg delivers 2.5ml so 158.8mg delivers 1.588×2.5=3.97ml approx.</p>Other Math Topicshttps://www.mathhomeworkanswers.org/255150/order-pediaprophen-reads-child-weighs-milliliters-admister?show=255155#a255155Thu, 18 Oct 2018 11:17:07 +0000Answered: solve for l , A =1/2 pi w exponent2 + 2lw
https://www.mathhomeworkanswers.org/255128/solve-for-l-a-1-2-pi-w-exponent2-2lw?show=255131#a255131
<p style="text-align: justify;">A=½πw²+2lw</p>
<p style="text-align: justify;">2lw=A-½πw²</p>
<p style="text-align: justify;">l=(A-½πw²)/(2w) or l=(2A-πw²)/(4w)</p>Other Math Topicshttps://www.mathhomeworkanswers.org/255128/solve-for-l-a-1-2-pi-w-exponent2-2lw?show=255131#a255131Thu, 18 Oct 2018 00:34:35 +0000Answered: Find the values for a and b that would make the equality true. -5(3x^2+5x+b) =ax^2-25x+45−5(3x 2 +5x+b)=ax 2 −25x+45
https://www.mathhomeworkanswers.org/255127/find-the-values-for-that-would-make-the-equality-true-45%E2%88%925-%E2%88%9225x?show=255130#a255130
<p style="text-align: justify;">a=-15 and b=-9</p>Algebra 1 Answershttps://www.mathhomeworkanswers.org/255127/find-the-values-for-that-would-make-the-equality-true-45%E2%88%925-%E2%88%9225x?show=255130#a255130Thu, 18 Oct 2018 00:25:52 +0000Answered: Linear Programming help
https://www.mathhomeworkanswers.org/10241/linear-programming-help?show=255129#a255129
<p style="text-align:justify">Let’s use W and R for the number of bottles of white and red wine. The objective function is P=25R+11W, and $P must be a maximum profit.</p>
<p style="text-align:justify">The constraints are that R and W are both positive whole numbers and:</p>
<p style="text-align:justify">Grapes: 25R+14W≤2198</p>
<p style="text-align:justify">Processing time: 2R+W≤160</p>
<p style="text-align:justify"><img alt="" src="https://www.mathhomeworkanswers.org/?qa=blob&qa_blobid=10663028115160250626" style="height:633px; width:500px"></p>
<p style="text-align:justify">The feasible region is below both lines and enclosed by the axes. The vertical axis is white wine quantity and the horizontal axis is the red wine quantity.</p>
<p style="text-align:justify">The lines intersect at the solution of 25R+14W=2198 and 2R+W=160. W=160-2R so we can substitute in the first equation: 25R+2240-28R=2198. 3R=42, R=14 and W=132.</p>
<p style="text-align:justify">We can ignore zero profit at (0,0). There are three other vertices to consider: (0,157), (14,132) and (80,0).</p>
<p style="text-align:justify">The value of P for each is respectively: $1727, $1802, $2000. So the maximum profit of $2000 is 80 bottles of red wine and no white wine.</p>Word Problem Answershttps://www.mathhomeworkanswers.org/10241/linear-programming-help?show=255129#a255129Wed, 17 Oct 2018 23:52:18 +0000Answered: If a company were to buy 1500 of these lightbulbs how many may burn out before burning for 830 hr
https://www.mathhomeworkanswers.org/255122/company-were-1500-these-lightbulbs-many-burn-before-burning?show=255125#a255125
<p style="text-align:justify">Z=(830-750)/80=1. This Z value corresponds to a probability of 0.8413. 830 hours is one standard deviation away from the mean. I interpret this as 0.8413 of 1500 bulbs are likely to fail before burning for 830 hours. This works out to be 1262 failures in 1500.</p>Statistics Answershttps://www.mathhomeworkanswers.org/255122/company-were-1500-these-lightbulbs-many-burn-before-burning?show=255125#a255125Wed, 17 Oct 2018 20:13:51 +0000Answered: linear programming problems
https://www.mathhomeworkanswers.org/79768/linear-programming-problems?show=255123#a255123
<p style="text-align:justify"><img alt="" src="https://www.mathhomeworkanswers.org/?qa=blob&qa_blobid=17617794655767466541" style="height:306px; width:500px"></p>
<p style="text-align:justify">The graph above shows a feasibility area, the red triangle ABC when the constraints are applied. The blue and green lines show the objective expression which has to be minimised. The blue line is the equation of the objective function before discounts are applied to the costs, and the green line the equation after discounts.</p>
<p style="text-align:justify">The blue and green lines pass through vertex B of the feasibility triangle. A detailed explanation and solution follow below.</p>
<p style="text-align:justify">Let A=number of cups of Brand A and B=number of cups of Brand B. The cost forms the objective function F=110A+175B and we need the minimum value of F.</p>
<p style="text-align:justify">The constraints are based on the quantities of crude protein and minerals.</p>
<p style="text-align:justify">Teddy’s preference can be expressed as A≤2B, meaning that the quantity of Brand A is at most twice that of Brand B.This inequality can also be written B≥A/2. For example, if there’s one cup of B then Teddy prefers no more than 2 cups of A, or if there are 2 cups of A then there’s at least one cup of B. With B as the vertical axis we draw the graph B=A/2, and the open area above and on the line represents B≥A/2.</p>
<p style="text-align:justify">The next constraint is the amount of crude protein. Teddy needs at least 15g so since we know that Brand A contains 2.5g per cup and Brand B 3g per cup: 2.5A+3B≥15 the total crude protein content in grams.</p>
<p style="text-align:justify">Finally, there must be no more than 0.5g of minerals so 0.05A+0.15B≤0.5 is the total mineral content in grams.</p>
<p style="text-align:justify">The area above the crude protein line and the area below the mineral line represent the constraints.</p>
<p style="text-align:justify">Combining these constraints graphically we can see that the red triangle ABC is the feasible region.</p>
<p style="text-align:justify">Now we need to work out the coordinates of A, B and C. We do this by solving systems of simultaneous equations.</p>
<p style="text-align:justify">Vertex A is at the intersection of 2.5A+3B=15 and 0.05A+0.15B=0.5:</p>
<p style="text-align:justify">Multiply the second equation by 20: A+3B=10, which when subtracted from the first equation gives 1.5A=5, making A=10/3. So we can find B=⅓(10-A)=20/9. A is (10/3,20/9) and F=6800/9=755.56 approx.</p>
<p style="text-align:justify">Vertex B is at the intersection of 2.5A+3B=15 and B=A/2:</p>
<p style="text-align:justify">Substitute for B: 2.5A+1.5A=15, 4A=15, A=15/4 and B=15/8. B is (15/4,15/8) and F=5925/8=740.625.</p>
<p style="text-align:justify">Vertex C is at the intersection of B=A/2 and 0.05A+0.15B=0.5:</p>
<p style="text-align:justify">Substitute for B: 0.05A+0.075A=0.5, 0.125A=0.5, A=4 and B=2. C is (4,2) and F=790.</p>
<p style="text-align:justify">The minimum value for F=740.625 is at vertex B(15/4,15/8).</p>
<p style="text-align:justify">The cost can be represented by the blue line. The slope of this line is -110/175 where negative implies a line sloping backwards. Graphically we are looking at 110A+175B=F which, until F is defined, is a set of parallel lines. We need the line that is as far over to the left as possible but within the red triangle. Vertex B is a point on the blue line, because the slope of the objective line is between the slopes of the crude protein and mineral lines. The equation is 110A+175B=740.625. At this point Teddy gets his preference, the crude protein content is 15g and the mineral content is 0.05A+0.15B=15/32g=0.46875, which lies below the mineral line, meeting the constraint that the content is no more than 0.5g.</p>
<p style="text-align:justify">The costs change when discount is applied, but the constraints remain the same.</p>
<p style="text-align:justify">The new objective function is 0.92×110A+0.955×175B=F, that is, 101.2A+167.125B=F. The green line shows the discounted function. Point B is still the required point and F=44343/64=692.859375.</p>
<p style="text-align:justify">Thus, Mr Bean makes a saving of 740.625-692.859375=3057/64=47.765625 cents.</p>
<p style="text-align:justify">In each case he should use 15/4 cups (3.75) cups of Brand A and 15/8 cups (1.875) cups of Brand B.</p>Statistics Answershttps://www.mathhomeworkanswers.org/79768/linear-programming-problems?show=255123#a255123Wed, 17 Oct 2018 17:06:59 +0000Answered: Consider the function below. lim x -> 2 x^3=8
https://www.mathhomeworkanswers.org/255089/consider-the-function-below-lim-x-2-x-3-8?show=255110#a255110
<p style="text-align:justify">Let h be the difference between x and 2, then f(2+h)=(2+h)³=(2(1+h/2))³=8(1+h/2)³.</p>
<p style="text-align:justify">This gives us 8(1+3h/2) approximately=8+12h.</p>
<p style="text-align:justify">So if 12h=0.05 then h=0.05/12=0.004 approx, which means that x must be within 0.004 units of 2.</p>
<p style="text-align:justify">To prove this we can cube 2.004 and 1.996 and we get roughly 8.048 which is about 8.05, and about 7.952. These are both within 0.05 units of 8, proving that x must be within 0.004 units of 2. The closest answer (not very close!) in the options is a.</p>
<p style="text-align:justify">Note that if h=0.01, 12h=0.12 so we would actually be within 0.12 units of 8. To prove this, 1.99³=7.88 approx and 2.01³=8.12 approx. Therefore, if x is within 0.01 units of 2 it does NOT guarantee that f(x) will be within 0.05 units of 8; it can only guarantee being within 0.12 units of 8.</p>Calculus Answershttps://www.mathhomeworkanswers.org/255089/consider-the-function-below-lim-x-2-x-3-8?show=255110#a255110Wed, 17 Oct 2018 08:30:17 +0000Answered: Estimate. Round each addend to the indicated place value. 34 + 65; tens
https://www.mathhomeworkanswers.org/255097/estimate-round-each-addend-to-the-indicated-place-value-tens?show=255108#a255108
<p style="text-align: justify;">Round 34 to the nearest ten: 30.</p>
<p style="text-align: justify;">Round 65: 70.</p>
<p style="text-align: justify;">Add the rounded numbers: 100 as the estimate. This compares well with the actual sum 99.</p>Other Math Topicshttps://www.mathhomeworkanswers.org/255097/estimate-round-each-addend-to-the-indicated-place-value-tens?show=255108#a255108Wed, 17 Oct 2018 08:07:46 +0000Answered: 2 1/7 times 2/5
https://www.mathhomeworkanswers.org/255096/2-1-7-times-2-5?show=255107#a255107
<p style="text-align: justify;">Convert 2 1/7 to an improper fraction: 15/7.</p>
<p style="text-align: justify;">Now multiply: 15/7×2/5=3/7×2=6/7.</p>Calculus Answershttps://www.mathhomeworkanswers.org/255096/2-1-7-times-2-5?show=255107#a255107Wed, 17 Oct 2018 08:05:18 +0000Answered: Marion has saved $299.99 in her account,Elaine sets aside her weekly allowance over a five week to buy the camera that costs $699.99. Calculate Elaine's weekly allowance
https://www.mathhomeworkanswers.org/255098/account-elaine-allowance-calculate-elaines-weekly-allowance?show=255105#a255105
<p style="text-align: justify;">Elaine has to make up the difference between Marion’s savings and the cost of the camera=699.99-299.99=$400. So she needs to save 400/5=$80 each week.</p>Word Problem Answershttps://www.mathhomeworkanswers.org/255098/account-elaine-allowance-calculate-elaines-weekly-allowance?show=255105#a255105Wed, 17 Oct 2018 08:02:52 +0000Answered: ((x/3)-6) / ((4/x)+10)
https://www.mathhomeworkanswers.org/255095/x-3-6-4-x-10?show=255104#a255104
<p style="text-align: justify;">Take the numerator: (x/3)-6 is the same as (x-18)/3 and the denominator is (4+10x)/x.</p>
<p style="text-align: justify;">Now the quotient: (x-18)/3÷(4+10x)/x=</p>
<p style="text-align: justify;">(x-18)/3×(x/(4+10x))=</p>
<p style="text-align: justify;">(x(x-18))/(3(4+10x)=</p>
<p style="text-align: justify;">(x²-18x)/(6(2+5x)), or (x²-18x)/(12+30x).</p>
<p style="text-align: justify;">We can take this further by using algebraic long division but that probably looks more complicated.</p>Algebra 2 Answershttps://www.mathhomeworkanswers.org/255095/x-3-6-4-x-10?show=255104#a255104Wed, 17 Oct 2018 07:55:20 +0000Answered: Find two consecutive odd integers such that their product is 19 more than 4 times their sum
https://www.mathhomeworkanswers.org/255099/find-consecutive-integers-their-product-more-than-times-their?show=255102#a255102
<p style="text-align: justify;">Represent the smaller odd number as 2x-1 where x is a whole number. The second number will be 2x+1 because 2x-1+2=2x+1. The product is (2x-1)(2x+1)=4x²-1. Their sum is 2x-1+2x+1=4x. 4 times their sum is 16x.</p>
<p style="text-align: justify;">Therefore 4x²-1=16x+19, that is, 4x²-16x-20=0 and we can divide through by 4:</p>
<p style="text-align: justify;">x²-4x-5=0=(x+1)(x-5) so x is -1 or 5.</p>
<p style="text-align: justify;">We can now work out the odd numbers. 2x-1=-3, so the other number is 2 more than this, making it -1.</p>
<p style="text-align: justify;">Or when we have x=5, the numbers are 10-1=9 and 11.</p>
<p style="text-align: justify;">Let’s see if they’re right. -3 times -1=3, and -3 plus -1 is -4; 4 times this is -16, and 19 more makes 3, which is their product so -1 and -3 is a solution.</p>
<p style="text-align: justify;">9 times 11=99, 9 plus 11=20, and 4 times 20=80. So 99=80+19 is true, making 9 and 11 a solution.</p>Algebra 1 Answershttps://www.mathhomeworkanswers.org/255099/find-consecutive-integers-their-product-more-than-times-their?show=255102#a255102Wed, 17 Oct 2018 07:44:38 +0000Answered: (-2.4 -.63 ) 1.8 x -3.42
https://www.mathhomeworkanswers.org/255087/2-4-63-1-8-x-3-42?show=255094#a255094
<p style="text-align:justify">First we do the sum in brackets: -2.4-0.63=-3.03. (-.63 is the same as -0.63 and -2.4 is the same as -2.40.)</p>
<p style="text-align:justify">Next we multiply this by 1.8 which gives us -5.454, and finally -5.454 times -3.42=18.65268, because the minus signs multiplied together make plus so we don’t need a sign in front of the result. I’m assuming there is no operator between the bracket and 1.8, so multiplication is implied.</p>Other Math Topicshttps://www.mathhomeworkanswers.org/255087/2-4-63-1-8-x-3-42?show=255094#a255094Tue, 16 Oct 2018 22:18:16 +0000Answered: What is the function of (-1,1), (0,3), (1,5), (2,7), (3,9)
https://www.mathhomeworkanswers.org/255091/what-is-the-function-of-1-1-0-3-1-5-2-7-3-9?show=255093#a255093
<p style="text-align:justify">It is a linear function because of the equal differences in the x-y values. So we can write the function as y=mx+a where a and m are constants. When x=0, y=3 so a=3. To find m we take any pair of points to work out the slope, so let’s use the first pair: m=(3-1)/(0-(-1))=2, therefore <strong>y=2x+3.</strong></p>
<p style="text-align:justify">Check by putting in a value for x from one of the points we haven’t used yet. Pick x=2, which makes y=2×2+3=7, which gives us the point (2,7) one of the listed points.</p>Algebra 1 Answershttps://www.mathhomeworkanswers.org/255091/what-is-the-function-of-1-1-0-3-1-5-2-7-3-9?show=255093#a255093Tue, 16 Oct 2018 22:07:39 +0000Answered: How do I do 904-829=? Using tape diagram?
https://www.mathhomeworkanswers.org/181108/how-do-i-do-904-829-using-tape-diagram?show=255092#a255092
904-829=75Other Math Topicshttps://www.mathhomeworkanswers.org/181108/how-do-i-do-904-829-using-tape-diagram?show=255092#a255092Tue, 16 Oct 2018 21:33:22 +0000Answered: Mike is 5 years twice as old as Tom. The sum of their ages is 65. How old is Mike?
https://www.mathhomeworkanswers.org/255088/mike-is-years-twice-as-old-tom-the-sum-their-ages-how-old-is-mike?show=255090#a255090
Bruh Really? What grade are you in?????? Ask your mom or dad. It is not that hard. Although it has alot of steps you can either figure it out or ask a nearby parent to help you...Word Problem Answershttps://www.mathhomeworkanswers.org/255088/mike-is-years-twice-as-old-tom-the-sum-their-ages-how-old-is-mike?show=255090#a255090Tue, 16 Oct 2018 19:28:52 +0000Answered: the sum of two numbers is 18. The difference is 8. Find the numbers
https://www.mathhomeworkanswers.org/25426/the-sum-of-two-numbers-is-18-the-difference-is-find-the-numbers?show=255068#a255068
6 and 12Algebra 1 Answershttps://www.mathhomeworkanswers.org/25426/the-sum-of-two-numbers-is-18-the-difference-is-find-the-numbers?show=255068#a255068Mon, 15 Oct 2018 21:09:18 +0000Answered: HOW DO YOU MODEL THE TOTAL COST AS A LINEAR FUNCTION, WITH TIME AS THE INDEPENDENT VARIABLE
https://www.mathhomeworkanswers.org/19327/model-total-linear-function-with-time-independent-variable?show=255057#a255057
<p style="text-align: justify;">This is a simple interest formula where p=principal amount and r is the rate. Over time t the principal amount grows to prt+p, so F(t)=p(1+rt). When the constants p and r are replaced by numbers we end up with a linear function. For example, let p=$1000 and r=5% per annum=0.05 then F(t)=1000(1+0.05t)=50t+1000, where t is the number of years and F is the amount or cost after t years.</p>Algebra 1 Answershttps://www.mathhomeworkanswers.org/19327/model-total-linear-function-with-time-independent-variable?show=255057#a255057Mon, 15 Oct 2018 07:39:00 +0000