What is the standard deviation of 73, 14, 21, 45, 18, 74, 32, 37

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

The trigonometric ratios sine and secant are reciprocals of each other

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12