A projectile is fired straight up from ground level. After t seconds its height s, in feet

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A projectile is fired straight up from ground level. After t seconds its height s, in feet above the ground, is given by

s = -16t² + 220t.

At what times is the projectile exactly 750 ft above the ground?

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College Algebra

ISBN: 978-0134697024

12th edition

Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

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Question Posted: Feb 09, 2019 01:00 PM

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A projectile is fired straight up from ground level. After t seconds its height s, in feet

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The projectile will be 750 ft above the ground whenever ...View the full answer

College Algebra

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