Question

You drop a rock off a bridge. The rock’s height, h (in feet above the water), after t seconds is modeled by h = -16t2 + 541. What is the height of the rock after 2 seconds?
A. –64 feet
B. 605 feet
C. 509 feet
D. 477 feet

Answer 1

It's easy! Substitute 2 for (t) so h= -16(2)^2+541. Do parenthesis first and then exponents 2^2 = 4.
h=-16(4)+541. Now do the multiplication
-16*4= -64
h=-64+541...h
= 477

Answer 2

Hello?

Answer 3

Well, I hope this helped!

Answer 4

Sorry reading. Im dexlic

Answer 5

Oh. That's okay :)

Answer 6

Well, the answer is 477!

Answer 7

Thank you ^3^

Answer 8

:3

Answer 9

Anytime!