The height above ground, S (in feet), of a ball thrown vertically into the air is given by , where t is the time in seconds since the ball was thrown. Graph this equation with a graphing utility and the range . Estimate the time at which the ball is at

its highest point. Round your answer to two decimal places.


A. 9.25
B. 0.22
C. 0.05
D. 18.50
E. 4.63


Answer: E

Mathematics

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B. Union; (-?, ?)

C. Intersection; (-5, ?)

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Factor the polynomial completely.x2 - y2 + 10y - 25

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Mathematics