If A stands for subtraction, S stands for addition, D stands for multiplication, M stands for division, then 128 A 20 D 25 M 5 S 11 is equal to * 39 28 11 40

Secant ac and bd intersect at point e inside f what is the measure of aed if measurements cd equals 30 a b is 50 and cb is 170

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

What expression is equivalent to (84+16)