Solve.How many 4-letter codes can be formed with the letters P, Q, R, S, T without repetition?
A. 480
B. 120
C. 60
D. 8
Answer: B
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Solve the problem.The following table shows a country's population from 1995 to 1998:
Divide the population for each year by the population in the preceding year. Use this ratio to write the general term of the geometric sequence describing the country's population growth n years after 1994. Then estimate the country's population, in millions, in 2004.
A. an = 10.60(1.03)n - 1; 16.89 million B. an = 10.60(1.04)n - 1; 15.09 million C. an = 10.60(1.04)n - 1; 15.69 million D. an = 10.60(1.03)n - 1; 17.91 million
Evaluate using integration by parts.
ln 7x dx
A. 
x5 ln 7x - 
x6 + C
B. ln 7x - 
x5 + C
C. 
x5 ln 7x - 
x5 + C
D. 
x5 ln 7x + 
x5 + C
Use dimensional analysis to convert the unit of length.5 feet to inches
A. 15 in. B. 180 in. C. 20 in. D. 60 in.
If an investment has a goal (future value) of $S after n years, invested at interest rate i (as a decimal), compounded annually, then the present value P that must be invested is given by
. Find P for the given S, n, and i. Round your answer to two decimal places.
?
$95,000 after 25 years at 8.5%
?
A. $12,358.91 B. $2,890.4 C. $13,409.42 D. $14,549.22 E. $10,309.82