Question

Please help me on this. Gracias.

Answer 1

For the first part, let h = 320 and solve for t.

Answer 2

For the second part, when the rocket is on the ground, the height is zero, so let h = 0 and solve the equation.

Answer 3

ok so it would be:

Answer 4

correct

Answer 5

ok then. do you subtract the 144 and 16 and what do you do with the t squared?

Answer 6

You need to solve the quadratic equation.

Answer 7

for part 2 right? but what about part 1?