Find an equation of the parabola described.Focus at (-18, 0); directrix the line x = 18
A. y2 = -18x
B. x2 = -72y
C. y2 = 72x
D. y2 = -72x
Answer: D
Mathematics
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Rationalize the denominator. Then simplify your answer.
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A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Use the appropriate rounding rule to answer the question with the correct precision or correct number of significant digits.You drive from your house to the store, a distance of 1.94 miles, then you drive another 36 miles to work. What is the total distance that you drive?
A. 38 miles B. 40 miles C. 37.94 miles D. 37.9 miles
Mathematics
Solve the differential equation.
= 6
A. y = 2x3 + x3/2 + C B. y = (2x3/2 + C)2 C. y = 4x3 + C D. y = 2x3/2 + C
Mathematics
Translate to a proportion and solve. 84 is 30% of what?
A. 2800 B. 28 C. 280 D. 25.2
Mathematics