Let X be an Exponential random variable with mean 1. Let Y1 and Y2 be Exponential random variables with mean 1/2, independent of each other and of X. Find P{ X > Y1 + Y2 + 1 }.

Valentino starts with a population of 1,500 amoebas that increases 35% in size every hour for a number of hours, h. the expression 1,500(1+0.35)h finds the number of amoebas after h hours. which statement about this expression is true? a. it is the initial population raised to the growth factor after h hours. b. it is the sum of the initial population and the percent increase. c. it is the sum of the initial population and the growth factor after h hours. d. it is the product of the initial population and the growth factor after h hours.

Acircle has a circumference of 28.36 units what is the diameter of the circle

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab