Factor completely.x2 - x - 54
A. (x - 6)(x + 9)
B. (x - 54)(x + 1)
C. (x + 6)(x - 9)
D. Prime
Answer: D
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Divide.61.65 ÷ 5
A. 12.33 B. 12.6 C. -13.03 D. 13.03
Solve the problem.R is a 5 by x rectangle. R' is an 8 by 13 - x rectangle. There are two values of x that make these rectangles similar. What is the ratio of the larger of these values to the smaller of these values?
A. 2 B. 1.6 C. 1.618 D. 0.618 E. none of these
Write the quadratic equation in standard form. Determine the values of a, b, and c.-2 - 6x - 4x2 = 0
A. 0 = 4x2 - 6x + 2 a = 4, b = -6, c = 2 B. -4x2 + 6x - 2 = 0 a = -4, b = 6, c = -2 C. 4x2 + 6x + 2 = 0 a = 4, b = 6, c = 2 D. 0 = 4x2 + 6x + 2 a = -4, b = 6, c = -2
Solve the problem.Kimberly invested 
in her savings account for 4 years. When she withdrew it, she had 
. Interest was compounded continuously. What was the interest rate on the account? Round to the nearest tenth of a percent.
A. 3.4% B. 3.3% C. 3.55% D. 3.5%