it true or false?
asked Oct 1, 2013 in Algebra 1 Answers by Sandy

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11 Answers

If b is the base and we have b^x divided by b^y the quotient is b^(x-y). The way to understand this is to write:

b*b*b*...*b (x b's multiplied together) = b^x and b*b*...*b (y b's multiplied together). Now divide and we end with b's cancelling out leaving (x-y) b's or (y-x) b's in the denominator which is 1/b^(y-x)=b^-(x-y). x and y can also be fractions, which is the basis of logarithms, because we add logs when we want to add and subtract when we want to divide. So the answer is true, even when b and its exponent are just one of a set of factors in the numerator or denominator.

answered Feb 19, 2015 by Rod Top Rated User (442,220 points)
need a distributive property for 6 times 11
answered Mar 9, 2015 by anonymous
true
answered Mar 10, 2015 by anonymous
10.00+9.00d=127
answered Mar 11, 2015 by anonymous
why is a parallelogram with congruent diagnals always a rectangle
answered Mar 11, 2015 by anonymous
The ratio of 7.7 to 5.5 is
answered May 17, 2015 by anonymous
n/2-40 = -124
answered Aug 24, 2015 by carole
a=10 and b= -9 and c=57: (b-c)/(2b-a)
answered Aug 29, 2015 by Edward Jupin
×2+×(×-5)-×+7 =-5×2-×+7
answered Aug 29, 2015 by anonymous
2x+y=-11 in the slope - intercept form
answered Oct 22, 2015 by unique
Trueeeeeeeeeeeeeeeeeeeeeeee
answered Oct 27, 2016 by Anthonie Saunders Level 2 User (1,360 points)
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