Solve the Rational Inequality $208 \mathrm { ft } / \mathrm { sec }$

question 479

Multiple Choice

Solve the rational inequality. Write the solution set in interval notation.
-A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of $208 \mathrm { ft } / \mathrm { sec }$ , and the gorge is $672 \mathrm { ft }$ deep, during what interval can the flare be seen? $\left( h = - 16 t ^ { 2 } + v _ { 0 } t + h _ { 0 } \right)$

• A) \(6 < t < 7\)
• B) \(0 < t < 6\)
• C) \(12 < t < 13\)
• D) \(18 < \mathrm { t } < 19\)

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