A Flare Fired from the Bottom of a Gorge Is $\left( h ( t ) = - 16 t ^ { 2 } + v 0 t + h 0 . \right)$

question 79

Multiple Choice

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 112 ft/sec and the gorge is 160 ft deep, during what interval can the flare be seen?
$\left( h ( t ) = - 16 t ^ { 2 } + v 0 t + h 0 . \right)$

• A) \(6 \sec < \mathrm { t } < 9 \mathrm { sec }\)
• B) \(4 \mathrm { sec } < t < 7 \mathrm { sec }\)
• C) \(2 \mathrm { sec } < t < 5 \mathrm { sec }\)
• D) \(0 \mathrm { sec } < t < 2 \mathrm { sec }\)

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Net Income

A company's overall profit after subtracting expenses and taxes from its revenue.

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The difference between the sales revenue generated from manufactured goods and the cost of goods sold, reflecting the profitability of the manufacturing operations.

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A costing method that includes only variable manufacturing costs - direct materials, direct labor, and variable manufacturing overhead - in product costs.

Variable Cost

Variable costs are expenses that vary directly with the level of production or sales volume.