n=5 p=0.45; Find the probability that that at least 1 of 5 donoars will have group O blood type

Question

does x equal 1?

Answer 1

Well unless the equation says solve for X or there is another equation with X= something then yes X should be one because it does not tell you to solve for X or have a second equation.

Right now I am taking Algebra one and we are doing the solve by elimination and there are some questions with 2 equations such as {2x+y=10 and y=5}

So you would substitute the 5 in for the Y. So the new equation would be 2x+5=10.

Hope this Helped.

So to sum it up yes X is most likely 1.

:)

Answer 2

Richard has just been given a 4-question multiple-choice quiz in his history class. Each question has four answers, of which only one is correct. Since Richard has not attended class recently, he doesn't know any of the answers. Assuming that Richard guesses on allfour questions, find the indicated probabilities. (Round your answers to three decimal places.)

(a) What is the probability that he will answer all questions correctly?

Answer 3

~~Richard has just been given a 4-question multiple-choice quiz in his history class. Each question has four answers, of which only one is correct. Since Richard has not attended class recently, he doesn't know any of the answers. Assuming that Richard guesses on all four questions, find the indicated probabilities. (Round your answers to three decimal places.)
(a) What is the probability that he will answer all questions correctly?