The formula for the area of a trapezoid is given. A=1/2(b1+b2)h

Which equation is solved for h, the height of the trapezoid?

A. h=2A/b1 + 2A/b2

B. h=A/2(b1+b2)

C. h=2A/b1+b2

D. h=A−b2/2b1

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?