Solve the problem.The formula v = 
can be used to estimate the maximum safe velocity v, in miles per hour, at which a car can travel along a curved road with a radius of curvature r, in feet. To the nearest whole number, find the maximum safe speed for a curve in a road with a radius of curvature of 450 feet.
A. 34 mph
B. 21 mph
C. 53 mph
D. 13 mph
Answer: A
Mathematics
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Simplify the expression.
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?
A. 
B. 
C. 
D. 
E. 
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.77.379
A. 77
B. 15
C. 
D. 
Mathematics
Find all of the rational zeros of the polynomial:
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Then find the irrational zeros, if any. Whenever appropriate, use the rational zeros theorem, the upper and lower bounds theorem, Descartes' rule of signs, the quadratic formula, or other factoring techniques.
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A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Find an nth degree polynomial function with real coefficients satisfying the given conditions.n = 3; - 6 and i are zeros; f(-3) = 60
A. f(x) = 2x3 + 12x2 + 2x + 12 B. f(x) = 2x3 + 12x2 - 2x - 12 C. f(x) = -2x3 - 12x2 + 2x + 12 D. f(x) = -2x3 - 12x2 - 2x - 12
Mathematics