4. A science student put together the following formula that can calculate the height, in feet,
of a water bottle rocket by using the number of seconds after the launch, X.
f(x) = –2x2 + 11x + 15
How high will the rocket be off the ground 3 seconds after it is launched?

correct answer:

i^31 = -i

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*