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A projectile is launched straight up in the air. Its height (in feet) t seconds after launch is given by the function f(t)= - 16t²+361t+5. Find the time when it strikes the ground. C The time is seconds. If necessary, round to two decimal places. Do not include units. If there is more than one answer, separate each answer with commas.

A projectile is launched straight up in the air. Its height (in feet) t seconds after launch is given by the function f(t)= - 16t²+361t+5. Find the time when it strikes the ground. C The time is seconds. If necessary, round to two decimal places. Do not include units. If there is more than one answer, separate each answer with commas.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 64PFA
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A projectile is launched straight up in the air. Its height (in feet) t seconds after launch is given by the function f(t) = - 16t² +361t+5. Find the time when it strikes the ground. The time is seconds. If necessary, round to two decimal places. Do not include units. If there is more than one answer, separate each answer with commas.
Transcribed Image Text:A projectile is launched straight up in the air. Its height (in feet) t seconds after launch is given by the function f(t) = - 16t² +361t+5. Find the time when it strikes the ground. The time is seconds. If necessary, round to two decimal places. Do not include units. If there is more than one answer, separate each answer with commas.
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