In the diagram, PQRT is a rhombus. STUQ and PUR are straight lines. Find the values of x and y.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each