Solve 3x^2 if x is 10

By the way, the x is a variable

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

To decrease an amount by 16% what single multiplier would you use