Simplify. Assume all variables represent nonnegative values.
A. 
B. 1
C. 14
D. 
Answer: D
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Solve the system by the addition method.
A. {(4, 5), (-4, 5), (4, -5), (-4, -5)} B. {(4, 5), (-4, -5)} C. {(5, 4), (-5, -4)} D. {(5, 4), (5, -4), (-5, 4), (-5, -4)}
Provide an appropriate response.If f(x, y) = 
, then fx(x, y) =
A. 
B. 
C. 
D. 
E. none of the above
Solve.When the temperature stays the same, the volume of a gas is inversely proportional to the pressure of the gas. If a balloon is filled with 72 cubic inches of a gas at a pressure of 14 pounds per square inch, find the new pressure of the gas if the volume is decreased to 24 cubic inches.
A. 39 pounds per square inch
B. 42 pounds per square inch
C. 
pounds per square inch
D. 28 pounds per square inch
Find the general solution for the differential equation.6
- 12xy - x = 0
A. y = - 
+ Ce-x2
B. y = - 
+ Cex2/2
C. y = 
+ Ce-x2/2
D. y = - 
+ Cex2