Find an equation of a parabola satisfying the given conditions.Focus (-2, -2), directrix y = 12
A. (y + 2)2 = -28(x + 5)
B. (y + 2)2 = -28(x - 5)
C. (x + 2)2 = -28(y + 5)
D. (x + 2)2 = -28(y - 5)
Answer: D
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Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
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is placed inside a cold storage room with a constant temperature of 
If the thermometer reads 
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Round your answer to the nearest whole minute.
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Find the vertex, focus, and directrix of the parabola with the given equation.(x - 1)2 = -12(y + 2)
A. vertex: (1, -2) focus: (1, -5) directrix: y = 1 B. vertex: (-2, 1) focus: (-2, -2) directrix: y = 4 C. vertex: (-1, 2) focus: (-1, -1) directrix: y = 5 D. vertex: (1, -2) focus: (1, 1) directrix: x = -5