Multiply and simplify. Assume that all variables represent positive real numbers.
? 
A. 18
B. 42
C. 21
D. 21
Answer: B
Mathematics
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Solve the problem.The number of gallons of water in a swimming pool t minutes after the owner begins to drain it is 
At what rate is the water being drained at the end of 10 minutes?
A. 500 gal/min B. 1000 gal/min C. 5000 gal/min D. 2500 gal/min
Mathematics
Use even and odd properties of the trigonometric functions to find the exact value of the expression.cot 
A. 
B. -
C. 
D. - 
Mathematics
Determine if the ordered pair is a solution to the given inequality.3x2 - y ? 9; (-0.5, 5.5)
A. Yes B. No
Mathematics
Subtract. Simplify, if possible.
- 
A. - 
B. 
C. 
D. 
Mathematics