What is x and y equal in: -2x-y=3 and x+2y=4 (find x and y using elimination)

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Select the lengths in centimeters that would form a right triangle

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm