A light bulb has a lifetime X that is exponentially distributed with a mean 340 hours. Find the probability that the bulb lifetime exceeds 220 hours when you know it already exceeded 100 hours ?

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld