There is one error in one of five blocks of a program. to find the error, we test three randomly selected blocks. let x be the number of errors in these three blocks. compute e(x) and var(x).

On any given day, the number of users, u, that access a certain website can be represented by the inequality 1125-4530 which of the following represents the range of users that access the website each day? u> 95 or u < 155 95> u> 155 u< 95 or > 155 95

Sunday: 1 1 2 monday: 1 tuesday: 2 1 2 wednesday: 1 3 4 thursday: 2 friday: 1 1 2 saturday: 2 jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. what is the total number of hours that jenna trains during the week?

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)