Simplify.i29 ? i27
A. i
B. -1
C. 1
D. -i
Answer: C
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P(0.1? T ? 0.5); T is Exponential(5).
Find the probability for the given random variable.
Solve.A newspaper carrier has $4.30 in change. He has two more quarters than dimes but three times as many nickels as quarters. How many coins of each type does he have?
A. 11 quarters, 9 dimes, 33 nickels B. 9 quarters, 7 dimes, 27 nickels C. 9 quarters, 11 dimes, 27 nickels D. 27 quarters, 25 dimes, 9 nickels
Change the fraction or mixed number into an equivalent decimal. Use bar notation to write repeating decimals. - 
A. -0.
B. 0.
C. 0.1
D. -0.1
Solve the problem.After a new firm starts in business, it finds that its rate of profit (in hundreds of dollars) after t years of operation is given by 
Find the profit in year 4 of the operation.
A. $12,000 B. $12,400 C. $7200 D. $8400