Find the standard equation of the parabola with the given focus and directrix.Focus: (0, 3); directrix: y = 1
A. y2 = 4(x - 2)
B. x2 = -4(y - 2)
C. y2 = -4(x - 2)
D. x2 = 4(y - 2)
Answer: D
Mathematics
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Solve the problem. Round to the nearest dollar.Central Street bought a rolling machine that cost $58,000. The expected life is 600,000 hours of production with a salvage value of $5,800. Find the book value at the end of the third year. Use the units-of-production method of depreciation given the following production schedule.Year 1135,000 hoursYear 2129,000 hoursYear 3121,000 hours
A. $17,550 B. $20,783 C. $34,650 D. $23,350
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Evaluate.70 - 150
A. -8 B. 0 C. 2 D. 1
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Combine like terms. Then write the polynomial in descending order of powers.0.9y + 0.2y2
A. 7y3 B. 9y2 - 2y C. 0.2y2 + 0.9y D. 0.9y + 0.2y2
Mathematics
Complete the table.
A. 
B. 
C. 
D. 
Mathematics