Write the equation in standard form for an ellipse or a hyperbola centered at (h, k).4x2 + 5y2 + 16x - 4 = 0

A.  +  = 1
B.  +  = 1
C.  +  = 1
D.  +  = 1


Answer: A

Mathematics

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A. 52
B. 26
C. 13
D.

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Solve the problem.A coin is tossed upward from a balcony 242 ft high (ho) with an initial velocity (vo) of , according to the formula h(t) = -16t2 + vot + ho, where t is time in seconds. During what interval of time will the coin be at a height of at least 50 ft?

A. 3 sec ? t ? 4 sec B. 0 sec ? t ? 1 sec C. 0 sec ? t ? 4 sec D. 4 sec ? t ? 8 sec

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A. 8x B. 85 C. 8x D. 5x

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A furniture store offers free setup and delivery services to all points within a 24-mi radius of its warehouse distribution center. If you live 20 mi east and 14 mi south of the warehouse, will you incur a delivery charge? Justify your answer.

What will be an ideal response?

Mathematics