Suppose it takes 11 hours to fill a rectangular swimming pool of uniform depth. How long will it take to fill a similarly shaped swimming pool if all of the dimensions are doubled?
?
A. 88 hr.
B. 22 hr.
C. 11 hr.
D. 44 hr.
E. 176 hr.
Answer: A
Mathematics
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Add or subtract. Simplify the answer.8 - 
A. 
B. 
C. 
D. 
Mathematics
Solve the system by substitution. If the system is inconsistent or has dependent equations, say so. x + y = 47x + 7y = 28
A. {(x, y)
}; dependent equations
B. ?; inconsistent system
C. {(0, 0)}
D. {(9, -5)}
Mathematics
For the simple harmonic motion described by the trigonometric function, find the maximumvalue of d when .
?
Round your answer to nearest whole number.
?
A. 1 B. 10 C. 6 D. 5 E. 0
Mathematics
Solve the problem.What is the probability of spinning an A on this spinner?
A. 
B. 
C. 
D. 
Mathematics