A person exerts a force of 500 N on a box, pushing it across the floor 25 m. He completes his work in exactly 30 seconds. What is the amount of power the person expended?

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

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Which statement describes surface features called maria on the moon