A spaceship launched into the air has a height (feet) at any given time (seconds) as h=-t^2+10t until it hits the ground. At what time(s) is it at a height of 9 feet above the ground

The spaceship is at a height 9 feet above the ground at 1 second and 9 second after lunched.

Step-by-step explanation:

Given that a spaceship launched into the air has a height at any time as

where h is height in feet and t is time in second.

To find the time when the height of the spaceship is 9, we need to put h=9 in the given equation.

The spaceship is at a height 9 feet above the ground at 1 second and 9 second after lunched.

nope

step-by-step explanation:

.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632