How long rock takes the rock to hit ground
The rock falls off the building, and its position after t seconds of free fall is 269-16t2 feet above ground. Building is 269 feet tall.
i. Determine rock's velocity at t=3 seconds?
ii. How long it takes the rock to hit ground?
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The rock falls off the building, and its position after t seconds of free fall is 269-16t2 feet above ground. Building is 269 feet tall. Determine rock's velocity at t=3 seconds?
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Suppose that adults have IQ scores which are normally distributed with a mean of 105 and a standard deviation of 15. Find the percentage of adults that have an IQ exceeding 116. Round your answer to the nearest integer.
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