Find the area of the trapezoid shown below and choose the appropriate result. A) 13 in?
B) 13.5 in?
C) 15 in?
D) 27 in?​

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

Find the quotient. 50a2 – 98b2 -5a +7b

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?