Solve the problem.How many different 10-letter words can be formed from the letters in the word IMMUNOLOGY?
A. 90,720
B. 907,200
C. 3,628,800
D. 1,814,400
Answer: B
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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
Round the numbers so that there is only one non-zero digit, and estimate the answer. Then perform the indicated operation to find the exact answer.91.5 - 9.25
A. estimate: 91; exact: 92.38 B. estimate: 81; exact: 82.25 C. estimate: 91; exact: 91.28 D. estimate: 81; exact: 82.35
Evaluate the integral.
A. - 
B. - 
C. 
D. 
Solve the problem.The present value that will give a future value S in 4 years with interest compounded annually varies inversely as the fourth power of 1 + r, where r is the annual interest rate. If the present value of $3.71 gives a future value of $5000, what would be the present value of $10,000? Round to the nearest dollar.
A. $7 B. $8 C. $45 D. $5