Solve the problem. Express any improper fraction as a whole or mixed number.One maid can clean the house in 8 hours. Another maid can do the job in 6 hours. How long will it take them to do the job working together?
A. 
hr
B. 24 hr
C. 3
hr
D. 
hr
Answer: C
Mathematics
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Solve the problem.The perimeter of a rectangle is 16 cm. The length is 4 cm longer than the width. What are the length and width of the rectangle?
A. Length: 7 cm; width: 3 cm B. Length: 6 cm; width: 2 cm C. Length: 8 cm; width: 4 cm D. Length: 4 cm; width: 2 cm
Mathematics
Is the following correspondence a function?DomainRange 
A. function B. not a function
Mathematics
Let p represent a true statement, and let q and r represent false statements. Find the truth value of the given compound statement.~(~p ? ~q) ? (~r ? ~p)
A. True B. False
Mathematics
The point P(x, y) on the unit circle that corresponds to a real number t is given. Find the value of the indicated trigonometric function at t.
?Find cot t.
A. - 
B. 
C. 
D. - 
Mathematics