Mike and Kara are asked to build a dog house. Mike can build the dog house by himself in 11 hours and Kara can build the dog house by herself in 9 hours. How long would it take to paint the house if they worked together?

Which of the following expressions is equal to 2x^2+8

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w