Simplify the factorial expression.
A. n + 5
B. n + 6
C. 
D. 
Answer: D
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Solve the problem.Find the value of a retirement savings account paying an APR of 6.6% (compounded monthly) after 40 years of monthly contributions (contributions made at the end of each month, including the last month) when the monthly contribution is $170. Round your answer to the nearest cent.
A. $428,359.87 B. $367,541.45 C. $371,712.72 D. $410,337.81 E. $399,104.52
Solve the problem.The focal length f of a lens with index of refraction n is 
= (n - 1)
where R1and R2 are the radii of curvature of the front and back surfaces of the lens. Express f as a rational expression.
What will be an ideal response?
Convert the temperature algebraically. Round the answer to one decimal place.71°F to Celsius
A. 159.8°C B. 70.2°C C. 71.4°C D. 21.7°C
Round the number to the nearest thousandth, nearest hundredth, and nearest tenth. Remember to round from the original number.0.4489
A. 0.448, 0.44, 0.4 B. 0.449, 0.45, 0.4 C. 0.449, 0.44, 0.5 D. 0.4489, 0.448, 0.44