Add the polynomials (−5x2+8x)+(2x2−3x+7) -3x^2+5x+7 7x^2+8x+11 -7x^2+11x+7

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

Which expression is equal to (f+g)(x)?