The surface area of a cylinder is given by the formula sa = 2πr2 2πrh, where r is the radius of the base of the cylinder and h is the height of the cylinder. solve the formula for h in the space given below. show all the steps.

Arandom high school question but a hard one

Measures of the angle of r, 31 s (x+4) t (3x+9)

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6