Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 6 - Algebra: Equations and Inequalities - 6.1 Algebraic Expressions and Formulas - Exercise Set 6.1: 38

Answer

40 ft

Work Step by Step

Given h= 4+ 60t - 16$t^{2}$ To find the ball’s height 3 seconds after it was kicked Step 1: substitute the value of t=3 sec in the formula h= 4+ 60(3) - 16$(3)^{2}$ Step 2: Evaluate the exponential expressions $(3)^{2}$ = 3x3 = 9 h= 4+ 60(3) - 16(9) step 3: Multiply 60(3) = 60x3 = 180 and 16(9) = 16x9= 144 h= 4+180-144 step 4: Add and subtract from left to right h= 184-144 h= 40ft Therefore the height of ball after 3 second it was kicked is 40 ft.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.