Solve.x4 - 9x2 + 20 = 0
A. ±2, ±2
B. 2, 
C. ±2, ±
D. ±2, ±5
Answer: C
Mathematics
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Graph the cycloid for t in the indicated interval.x = 2(t - sin t), y= 2(1 - cos t), 0 ? t ? 6?
A. 
B. 
C. 
D. 
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Find the median for the set of numbers.3, 4, 19, 22, 31, 41, 48
A. 24 B. 31 C. 19 D. 22
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Solve the problem.A serving of cooked white rice provides 3% of the daily value of an essential mineral. Express this percent as a fraction.
A. 
B. 
C. 
D. 
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Find an equation of a parabola that satisfies the given conditions.Vertex (5, -4), focus (8, -4)
A. (y + 4) = 
B. x - 5 = 3(y + 4)2
C. 
(x - 5) = (y + 4)2
D. (x - 5) = 
Mathematics