Determine whether the pair of lines are parallel, perpendicular, or neither.12x + 4y = 1621x + 7y = 31
A. parallel
B. perpendicular
C. neither
Answer: A
Mathematics
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Simplify the expression.-9 + (-34) - 13 + 
A. -33 B. -25 C. -51 D. 17
Mathematics
Solve the problem.Frank's Furniture employees earned the following amounts last week:
What was the mean amount earned by an employee last week? Round your answer to the nearest cent.
A. $444.30 B. $388.76 C. $338.90 D. $345.57
Mathematics
Evaluate the integral by changing the order of integration in an appropriate way.
A. 
ln 513
B. 9 ln 513
C. 
ln 4097
D. 9 ln 4097
Mathematics
Find an equation for the ellipse described.Center at (0, 0); focus at (-2, 0); vertex at (3, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics