At a certain high school, 25 students play stringed instruments, 15 students play brass instruments, and 5 students play neither stringed nor brass instruments. what is the probability that a randomly selected student plays both a string or brass instrument?

How many zeros does the function f(x)=4x3-x2+1 have

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

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