Find an equation of a parabola satisfying the given conditions.Focus at (0, 3?), directrix y = -3?
A. x2 = 3?y
B. y2 = 4?x
C. x2 = 12?y
D. y2 = 12?x
Answer: C
Mathematics
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A. -2, -4, -8, -16 B. 0, 5, -5, 0 C. -1, -2, -4, -8 D. -1, -5, 0, 5
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Determine if the given value is a solution to the equation.4(k + 3) - (3k + 9) = -9; k = 12
A. No B. Yes
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Solve the problem.Let f(x) = cos x, g(x) = x - ?/2, and h(x) = 2x. Find h(f(x)).
A. 2 cos x B. cos(2x) C. 2 cos(x - ?/2) D. cos(x - ?/2)
Mathematics
Solve the equation.log4 x = 3
A. {64} B. {81} C. {12} D. {7}
Mathematics