Solve the Rational Inequality $320 \mathrm { ft }$ High with an Initial Velocity Of

question 21

Multiple Choice

Solve the rational inequality. Write the solution set in interval notation.
-A coin is tossed upward from a balcony $320 \mathrm { ft }$ high with an initial velocity of $32 \mathrm { ft } / \mathrm { sec }$ . During what interval of time will the coin be at a height of at least $80 \mathrm { ft }$ ? $\left( h = - 16 t ^ { 2 } + v _ { 0 } t + h _ { 0 } \right.$ . $)$

• A) \(0 \leq t \leq 1\)
• B) \(4 \leq t \leq 5\)
• C) \(5 \leq t \leq 10\)
• D) \(0 \leq t \leq 5\)

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