Dr. cwetna recorded all of the grades on a unit test on the chart below. what is the mean and standard deviation of the distribution of individual grades? (18 points) 1. = 2. =

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

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

The function show two sisters' savings account and the rate at which they plan to deposit money