Find the value(s) of the variable for which the rational expression is undefined.
A. 0
B. -7
C. 7
D. -4, 0, 4
Answer: C
Mathematics
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Solve the problem.A swimming pool has the shape of a box with a base that measures 23 m by 12 m and a depth of 3 m. How much work is required to pump the water out of the pool when it is full?
A. 1,242,000 J B. 24,343,200 J C. 12,171,600 J D. 45,511,200 J
Mathematics
Solve.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 
when the length is 
what is the period when 
A. 1.0 s B. 4.8 s C. 1.4 s D. 5.0 s
Mathematics
Find the exact value of the expression.sin
A. 1
B. 
C. 
D. 0
Mathematics
Add or subtract as indicated.(x3y2 + 2x2y3 + 2xy - 3) + (x2y3 - 7x3y2 + 2xy - 5)
A. -8x3y2 + 3x2y3 + 4xy - 8 B. -6x3y2 + 3x2y3 + 2xy - 8 C. -6x3y2 + 3x2y3 + 4xy - 8 D. 2x3y2 - 5x2y3 + 4xy - 8
Mathematics