Write the polar equation in terms of x and y.r = 4 cos ?
A. x2 + y2 = 4x
B. x2 + y2 = 16
C. x = 
D. x = 4
Answer: A
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Find the GCF for the group of monomials.21x4y2, 189x9y, and 441x5y5
A. 189x4 B. 3969x5 C. 21x5y5 D. 21x4y
Solve the problem.Assume that the profit P made when t units are sold, t > 0, is given by P(t) = t2 - 18t + 72. For what values of t will there be a profit (that is, P > 0)?
A. t = 6 or t = 12 B. t = 18 C. 6 < t < 12 D. 0 < t < 6 or t > 12
Solve the problem.A sum of money amounting to $4.05 consists of dimes and quarters. If there are 27 coins in all, how many are quarters?
A. 18 quarters B. 9 quarters C. 20 quarters D. 14 quarters
Evaluate the function for the given values of a and b. Then use the intermediate value theorem to determine which of the statements below is true.a = 1 and b = 2f(x) = -10x4 + 8x3 + 7x + 9
A. f(1 ) and f(2) have the same sign, therefore the intermediate value theorem cannot be used to determine whether f has a real zero between 1 and 2. B. f(1 ) and f(2) have opposite signs, therefore f does not have a real zero between 1 and 2. C. f(1 ) and f(2) have opposite signs, therefore f has a real zero between 1 and 2. D. f(1 ) and f(2) have the same sign, therefore f does not have a real zero between 1 and 2.