A ball is thrown in the air from the top of a science I building from Modesto Junior College. Its height, in meters above ground, as a function of time, in seconds, is given by h(t)= -4.9t2 + 24.5t + 29.4 a)  How long does it take to reach maximum height and what is maximum height? b). How long does it take for a ball to reach the ground?

Intermediate Algebra
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Author:Lynn Marecek
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Chapter9: Quadratic Equations And Functions
Section9.6: Graph Quadratic Functions Using Properties
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1) A ball is thrown in the air from the top of a science I building from Modesto Junior College. Its height, in meters above ground, as a function of time, in seconds, is given by

h(t)= -4.9t2 + 24.5t + 29.4

a)  How long does it take to reach maximum height and what is maximum height?

b). How long does it take for a ball to reach the ground?

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