Determine the intervals for which 
is entirely negative and entirely positive.
A. negative: 
positive: 
B. negative: 
positive: 
C. negative: 
positive: 
D. negative: 
positive: 
E. negative: 
positive: 
Answer: A
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Solve the problem.A garage owner wants to fill a 55-gallon drum with a 20% winter mixture of antifreeze for his customers. How many gallons of 100% antifreeze should he mix with some 10% antifreeze mixture in order to fill the drum?
A. 48
gallons
B. 35
gallons
C. 19
gallons
D. 6
gallons
The weight of a certain type of fish is a power function of its length. The value of the power in this function is 
. If the length is multiplied by 1.28, how the is weight affected? Round your answer to two decimal places if necessary.
?
A. Weight is multiplied by 1.12. B. Weight is multiplied by 1.31. C. Weight is multiplied by 2.22. D. Weight is multiplied by 1.73.
Use the formula for 
to solve.In a contest in which 7 contestants are entered, in how many ways can the 5 distinct prizes be awarded?
A. 84 B. 2520 C. 42 D. 21
Find the LCD for the fractions in the list.
, 
, 
A. 20 B. 12 C. 30 D. 60