Perform the operation indicated. Simplify.
+ 
A.
B.
C.
D.
Answer: B
Mathematics
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Find the equation for the level surface of the function through the given point.f(x, y, z) = e(x2 + y2 - z), (4, 3, 2)
A. ln(x2 + y2 - z) = 23 B. x2 + y2 - z = e23 C. x2 + y2 - z = ln(23) D. e(x2 + y2 - z) = ln(23)
Mathematics
Solve the problem.The table gives the change in producer price indexes.Which has a greater absolute value, the change for food from January to June or from July to December?
A. July to December B. January to June
Mathematics
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.3 ÷ 4
A. 3
B. 13
C. 3
D.
Mathematics
Evaluate the polynomial.-3x + 5 for x = 5
A. -20 B. 2 C. -30 D. -10
Mathematics