Find an equation of the parabola described.Directrix the line y = 3; vertex at (0, 0)

A. x = 3y2
B. y = - x2
C. y = -12x2
D. x = - y2

Answer: B

Mathematics

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Solve the problem.Nikki is fishing from a bank 37 feet above water level. In this location, the fish tend to feed at 39 feet below the surface. How long must Nikki's fish line be to reach the fish?

A. 76 feet B. -2 feet C. 2 feet D. -37 feet

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Solve the problem by writing and using a system of linear equations.Two numbers have a sum of 138 and a difference of 28. Find the numbers.

A. 86, 58 B. 166, -28 C. 73, 65 D. 83, 55

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Write an equivalent fraction satisfying the stated condition.; denominator = 8

A.
B.
C.
D.

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State the period of the function and graph.cos  + 3

A. Period 2?

B. Period 2?

C. Period 2?

D. Period 2?

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Mathematics