Solve the problem.A person standing close to the edge on top of a 304-foot building throws a baseball vertically upward. The quadratic function 
models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 368 seconds
B. 6.8 seconds
C. 1.5 seconds
D. 2 seconds
Answer: D
Mathematics
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Multiply. Write the answer in simplest form.
? - 
A. - 
B. - 
C. 
D. - 
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A study asked 54 adults if they had taken art, biology, or cooking in school. According to the Venn diagram below, how many had taken
n(A)
A. 12 B. 9 C. 4 D. 17
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Subtract.-
- 
A. - 9
B. - 11
C. - 12
D. 12
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Solve the inequality. Graph the solution set.|x| ? 4
A. (-?, -4] ? [4, ?)
B. (-4, 4)
C. (-?, 4]
D. [-4, 4]
Mathematics