Antidifferentiate 9sin^4x using the table of integrals

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

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