Solve the application.Find the area of the skating rink. Use ? ? 3.14 and round to the nearest tenth if necessary.
A. A ? 956.2 ft2
B. A ? 1408.3 ft2
C. A ? 1912.3 ft2
D. A ? 1460.2 ft2
Answer: D
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The amount A, in grams, of a radioactive substance remaining after t years is given by 
.
What is the limiting value for the amount of the radioactive substance?
A. About 0.58 grams B. About 12.00 grams C. About 12.58 grams D. 0 grams
Solve the problem.A pension fund invests $114,200 in municipal bonds and earns 13% per year on the investment. How much money is earned per year?
A. $14,846 B. $878,462 C. $87,846 D. $148,460
Solve.The value of a particular investment follows a pattern of exponential growth. You invested money in a money market account. The value of your investment t years after your initial investment is given by the exponential growth model A = 1400e0.059t. When will the account be worth $2381?
A. 10 years after the initial investment B. 9 years after the initial investment C. 8 years after the initial investment D. 11 years after the initial investment
Find the final balance in the check register.
A. $1,147.20 B. $3,362.55 C. $5,934.80 D. $1,799.92