3x²– 2x + 1 = [?] Help Resol x=4 Enter​

Which of the following is the true for f(x) = 5cos

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

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