The height h, in feet, of a ball above the ground t seconds after being thrown upward with a velocity of 64 ft/s is given by h = −16t2 + 64t + 9. After how many seconds will the ball be 57 ft above the ground? (Enter your answers as a comma-separated list.
The height h, in feet, of a ball above the ground t seconds after being thrown upward with a velocity of 64 ft/s is given by h = −16t2 + 64t + 9. After how many seconds will the ball be 57 ft above the ground? (Enter your answers as a comma-separated list.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.3: Solving Quadratic Equations By Graphing
Problem 6GP
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The height h, in feet, of a ball above the ground t seconds after being thrown upward with a velocity of 64 ft/s is given by h = −16t2 + 64t + 9. After how many seconds will the ball be 57 ft above the ground? (Enter your answers as a comma-separated list.)
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