The function 
satisfies the equation of change 
. For what value of f is f increasing at the fastest rate?
?
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.What is the cost of lighting a 500-watt outdoor light for 8 hours, if electricity costs 7.5¢ per kilowatt-hour?
A. 45 cents B. 60 cents C. 30 cents D. 67 cents
Mathematics
Solve using the formula for the future value of an ordinary annuity.Starting in January, you make monthly payments at the end of each month into an account paying the specified yearly interest. Interest is compounded monthly. How much will you have available by the specified date?monthly payment, $200; yearly interest rate, 5%; date, August 1
A. $1417.62 B. $1768.29 C. $1517.62 D. $1167.62
Mathematics
Express the equation in logarithmic form.
?
?
A. 
B. 
C. 
D. 
Mathematics
Write the expression in the standard form a + bi.
A. 4 + 2i
B. 
+ 
i
C. 4 - 2i
D. 
- 
i
Mathematics