At the beginning of every football game, the referee flips a coin to see who will kick off. The equation that gives the height (in feet) of the coin tossed in the air is To find the times at which the coin is 20 feet above the ground we substitute 20 for
in the equation, giving us
Solve this equation for
to find the times at which the coin is
feet above the ground.
Correct Answer:
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Q91: Solve the following equation by first multiplying
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