Find the equation in standard form of the parabola described.The vertex has coordinates (3, -5), and the focus has coordinates (3, -7).
A. (x - 3)2 = -8(y + 5)
B. (y - 5)2 = 16(x + 3)
C. (x - 3)2 = 8(y + 5)
D. (y - 5)2 = -16(x + 3)
Answer: A
Mathematics
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Find the mean.Following is a list of rainfall amounts for the past five months. Each amount is the total of rainfall in a month. Calculate the mean. Round to the nearest tenth when necessary. 4.2 in.
5 in.
2 in.
5 in.
1.8 in.
A. 3 in. B. 3.6 in. C. 4.2 in. D. 5 in.
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