Find the center and the radius of the circle.x2 + y2 - 6x = -14y - 42
A. (4, -8); r = 4
B. (3, -7); r = 5
C. (6, -7); r =4
D. (3, -7); r = 4
Answer: D
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Solve the problem.The value of a particular investment follows a pattern of exponential growth. In the year 2000, you invested money in a money market account. The value of your investment t years after 2000 is given by the exponential growth model A = 4600e0.064t. By what percentage is the account increasing each year?
A. 6.6% B. 7.1% C. 7.0% D. 6.8%
Factor the expression. Express your answer so that only positive exponents occur. (x + 6)-3/5 + (x + 6)-1/5 + (x + 6) 1/5
A. (x + 6)-3/5 [1 + (x + 6)4/5 + (x + 6)6/5] B. (x + 6)-3/5 [1 + (x + 6) 2/5 + (x + 6)4/5] C. (x + 6)-3/5 [1 + (x + 6)1/5 + (x + 6)3/5] D. (x + 6)-3/5 [1 + (x + 6) -2/5 + (x + 6) -4/5]
Divide the monomials.
A. 5x2 B. x C. 5x3 D. 5x
Solve.One week in April in the town of Simmons, it rained 0.61 inches on Monday, 2.52 inches on Wednesday, and 2.03 inches on Friday. It didn't rain the other four days. What was the total rainfall for the week?
A. 5.16 in. B. 4.96 in. C. 5.14 in. D. 5.06 in.