A factory makes car batteries. The probability that a battery is defective is 1/4. If 400 batteries are tested, about how many are expected to be defective?

there were a total of 300 tickets sold for a school play. adult ticket cost $5 and children tickets cost $3. there was a total of $1,060 made from tickets sales. how many of each ticket was sold

What is the residual of the percent earned 71 on a test score if the class average on a test was 72%

Which two numbers add to 18 and multiply to - 63

Given that a triangle has two sides of lengths 5 inches and 7 inches, which is a possible length of the third side? 3 inches 2 inches 12 inches 13 inches

Find the domain of the function 1/x+4

1/2x-3/2 what's the answer

A data set a has a mean of 7, a median 5, and a mode of 8. wich of the the numbers 7,5, and 8 must be in the data set?

A class consists of 68 female students and 80 male students. One student is selected at random. What is the probability that the student is female?

What is the sqaure root of - 125

Given that f (x) = 6x^2-900