If f(x) and f1(x) are inverse of each other and f(x)=2x+5, what is f1(8)? (Will give brainliest) a. -1

b. 3/2

c.41/8

d.23

Factor this polynomial completely x^2-64

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

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?