Awheel makes 40 revolutions per minute at this rate how many minutes does it take the wheel to make 280 revolutions

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

What is the value of the discrimination for the quadratic equation 0=×2+2+×2

Sioux co. replaced the roof on its existing building, therefore increasing the building's life by 10 years. the cost of the roof is considered a(n):