Simplify the expression. Assume all variables represent positive real numbers.
A. 2k3
B. 8k3
C. -2k3
D. 2k12
Answer: A
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Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__10615191636__f1q39g7.jpg" alt="" style="vertical-align: -4.0px;" /> 
Rwhere R is the parallelepiped bounded by the planes 
A. 8190
B. 36855
C. 73710
D. 32760
Use the order of operations to multiply the given expression.
Solve the problem involving related quantities.The perimeter of a triangle is 49 centimeters. Find the lengths of its sides, if the longest side is 7 centimeters longer than the shortest side, and the remaining side is 3 centimeters longer than the shortest side.
A. 6 cm, 10 cm, 13 cm B. 13 cm, 16 cm, 20 cm C. 13 cm, 16 cm, 23 cm D. 16 cm, 19 cm, 23 cm
The solution of 
is
Select the correct answer.
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A. 
B. 
C. 
D. 
E. 