Solve the problem.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 42 sec
B. 28 sec
C. 21 sec
D. 14 sec
Answer: C
Mathematics
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Determine if the given polar coordinates represent the same point.(1, -4?/3), (-1, 5?/3)
A. No B. Yes
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Find the area of the shaded region. f(x) = x3 + x2 - 6x
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.In order for a certain paintbrush to be sold, it must have bristles with a total volume of 
. Upon a final check before being sent to the retail center, a paintbrush was found to have bristles with a total volume of 0.570. Was this paintbrush able to be sold?
A. No B. Yes
Mathematics
Determine a window that will provide a comprehensive graph of the polynomial function.y = 3x3 - 26x2 + 18x - 47
A. [-10, 10] by [-150, 150] B. [-8, 10] by [-100, 300] C. [-5, 5] by [-500, 100] D. [-3, 10] by [-400, 100]
Mathematics