The player hits the ball up in the air with an upward velocity of 18 ft/sec. The equation that gives the height of the ball at any time ’t’ is h(t) = -8t^2 + 18t + 5. How long did it take for the ball to hit the ground? ^2 being squared for those who dont know.

The ball will hit the ground at t=2.5 seconds.

Step-by-step explanation:

Solve the quadratic equation to get the roots.

t=-0.25 and t=2.5

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere