Solve for u. 7u = 91 Simplify your answer as much as possible.

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

For the inequality |c| < |d| to be true, which of the following must be true?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.