Find the domain of the function.f(x) = 5log8(x2)
A. (0, ?)
B. 
C. (-?, 0) ? (0, ?)
D. (5, ?)
Answer: C
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Solve the problem. Round money amounts to the nearest cent.Kristin switched from drinking 3 cups of drip coffee per day to drinking 2 cups of decaffeinated coffee per day. How many fewer grams of caffeine is she consuming each week? Assume that a cup of drip coffee contains 90 mg of caffeine and a cup of decaffeinated coffee contains 5 mg of caffeine.
A. 18.2 g B. 2.6 g C. 1.82 g D. 0.26 g
Simplify the expression.
A. 
B. 
C. 
D. undefined
Solve the problem.At the beginning of a trip, the odometer on a car reads 26,479 and the car has a full tank of gas. At the end of the trip the odometer reads 26,778 and there are 2.3 gallons remaining in the tank. The tank can hold a total of 13 gallons. What is the average rate of change of the number of miles with respect to the number of gallons? Assume that the tank was not filled during the trip.
A. 27.94 miles/gal B. 299 miles C. 19.54 miles/gal D. 23.00 miles/gal
Convert the radian measure to degree measure. Use the value of ? found on a calculator and round answers to two decimal places.-1.5733
A. -90.14° B. -90.84° C. -89.64° D. -89.14°