Represent the work done by Sarah after x hours if she can finish it in 5 hours alone

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e. g. 98.7654). x f(x) 0 1 2 3

Which function has the domain x> -11?