Find an equation of the parabola described.Focus at (5, 0); vertex at (0, 0)
A. x2 = 5y
B. x2 = 20y
C. y2 = 5x
D. y2 = 20x
Answer: D
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Solve the problem.Ten thousand raffle tickets are sold. One first prize of $1600, 4 second prizes of $1000 each, and 8 third prizes of $300 each are to be awarded, with all winners selected randomly. If you are given one ticket, what are your expected winnings?
A. 128 cents B. 108 cents C. 80 cents D. 29 cents
Find the limit if it exists.
(6x2 - 4x - 6)
A. 186 B. 198 C. 246 D. 234
Factor out the greatest common factor. Be sure that the coefficient of the term of highest degree is positive.72x7y9 + 96x4y5 + 60x2y2
A. 12(6x7y9 + 8x4y5 + 5x2y2) B. x2y2(72x5y7 + 96x2y3 + 60) C. 12x2y2(6x5y7 + 8x2y3 + 5) D. 12x2(6x5y9 + 8x2y5 + 5y2)
Write equations of the horizontal and the vertical lines that pass through the given point.(5, -6.99)
A. horizontal: y = -6.99x; vertical: x = 5y B. horizontal: y = -5; vertical: x = 6.99 C. horizontal: y = -6.99; vertical: x = 5 D. horizontal: y = 6.99; vertical: x = -5