Find the vertex of the parabola, and determine whether the parabola opens upward, downward, to the left, or to the right.x = (y + 5)2 + 4
A. (4, -5), right
B. (-5, 4), left
C. (5, -4), right
D. (-25, 4), left
Answer: A
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Express the number as the ratio of two integers.0.77777 . . .
A. 
B. 
C. 
D. 
Find the present value for the given future amount. Round to the nearest cent.A = $9000, 7 yearsr = 4% compounded semiannually
A. $6839.26 B. $6820.88 C. $2179.12 D. $11,875.31
Simplify the radical expression. Assume all variables represent positive real numbers.
A. 
B. 2
C. 4
D. 26
Solve the problem.A life insurance company uses the following rate table for annual premiums for women for term life insurance. Use a graphing utility to fit an exponential function to the data. Predict the annual premium for a woman aged 70 years.
A. y = 6.367e0.068x, $743 B. y = 0.0000398x4.06, $1233 C. y = -9306.4 + 2516.3 ln (x), $1723 D. y = 8.94e0.068x, $1044