The large rectangle below is divided into nine squares labeled a through 1. the area of square c is 64 square units and the area of square d is 81 square units. determine the dimensions.

How many natural numbers n satisfy the inequality: 1/7 < n/10 < 4/5 ?

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'