Find the domain of the logarithmic function. Write your answer in interval notation.f(x) = log3(x + 9)2
A. (-9, ?)
B. (-?, -9) ? (-9, ?)
C. (9, ?)
D. (-?, 0) ? (0, ?)
Answer: B
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Choose the first set in the list natural numbers, whole numbers, integers, rational numbers, and real numbers that describes the following number.16
A. Real numbers B. Integers C. Whole numbers D. Natural numbers
Solve the problem.The voltage V across a semiconductor in a computer is given by V = aI + bI2, where I is the current (in amperes). If a 9-volt battery is connected across the semiconductor, find the current if a = 6 and b = 3.
A. I = 3 amperes B. I = 1 ampere C. I = -3 amperes D. Not enough information
Solve.
(2x - 6) - 
< 
A. x > 
B. x < 
C. x < 
D. x < 
Solve the problem.A manufacturer makes three different drinks. Drink 1 contains 10% juice and 90% carbonated water. Drink 2 contains 50% juice and 50% carbonated water. Drink 3 contains 90% juice and 10% carbonated water. The manufacturer currently has available 60 liters of juice and 160 liters of carbonated water. Drink 1 sells for $1 per liter, Drink 2 sells for $2 per liter, and Drink 3 sells for $3.80 per liter. How many liters of each drink should the manufacturer make to maximize revenues?
A. 172.5 liters of Drink 1, 0 liters of Drink 2, 47.5 liters of Drink 3 B. 128.0 liters of Drink 1, 20 liters of Drink 2, 37.5 liters of Drink 3 C. 142.5 liters of Drink 1, 60 liters of Drink 2, 30.0 liters of Drink 3 D. 152.5 liters of Drink 1, 40 liters of Drink 2, 40.0 liters of Drink 3