using calculas, it can be shown that is a ball is thrown upwards with an initial velocity of 16 ft/s from the top of a building 128 ft high, then its height h above the grounf t seconds later will be h(t)= 128+16t-16t^2 during what time interval will the ball be at least 32 ft above the ground?

using calculas, it can be shown that is a ball is thrown upwards with an initial velocity of 16 ft/s from the top of a building 128 ft high, then its height h above the grounf t seconds later will be h(t)= 128+16t-16t^2 during what time interval will the ball be at least 32 ft above the ground?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter9: Quadratic Functions And Equations

Section9.4: Solving Quadratic Equations By Factoring

Problem 2GP

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Question

using calculas, it can be shown that is a ball is thrown upwards with an initial velocity of 16 ft/s from the top of a building 128 ft high, then its height h above the grounf t seconds later will be

h(t)= 128+16t-16t^2

during what time interval will the ball be at least 32 ft above the ground?

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