The height h, in feet, of a ball t seconds after being thrown from a height of 6 ft is given by the equation ℎ = −16 2 + 32   + 6. After how many seconds is the ball 18 ft above the ground? Round to the nearest tenth.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
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Chapter2: Equations And Inequalities
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The height h, in feet, of a ball t seconds after being thrown from a height of 6 ft is given by the equation ℎ = −16 2 + 32   + 6. After how many seconds is the ball 18 ft above the ground? Round to the nearest tenth.

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