Solve the Problem $t$ Seconds Is Given by the Equation $\mathrm { h } ( \mathrm { t } ) = - 16 \mathrm { t } ^ { 2 } + 80 \mathrm { t } + 32$

question 85

Multiple Choice

Solve the problem.
-If an object is propelled upward from a height of 32 feet at an initial velocity of 80 feet per second, then its height after $t$ seconds is given by the equation $\mathrm { h } ( \mathrm { t } ) = - 16 \mathrm { t } ^ { 2 } + 80 \mathrm { t } + 32$ , where height is in feet. After how many seconds will the object reach a height of 132 feet?

• A) \(1.3 \mathrm { sec }\)
• B) \(10 \mathrm { sec }\)
• C) \(2.5 \mathrm { sec }\)
• D) \(5 \mathrm { sec }\)

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