Perform the indicated operation. Simplify the result, if possible.
- 
A. 
B. 
C. 
D. 
Answer: C
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Find the extreme values of the function subject to the given constraint.
A. Maximum: 26 at 
minimum: -26 at 
B. Maximum: 26 at 
minimum: 0 at 
C. Maximum: 36 at 
minimum: -36 at 
D. Maximum: 36 at 
minimum: 0 at 
Answer the question about traveling salesman problems.The diagram below shows the distances, in miles, between four cities: A, B, C, and D. A businessman must travel between all four cities, starting and ending in his home city, A. He wants to find the optimal tour. In this case, what is the "cost variable"?
A. distance traveled B. price to travel between cities C. size of the planes D. number of cities to go to E. travel time
Evaluate the function f at the indicated value.
{9x + 1, if x < 22x, if 2 ? x ? 42 - 8x, if x > 4
A. -4 B. 18 C. 19 D. -17
Solve the equation and check your solution.4.8 = x + 1.2
A. 4.00 B. -3.6 C. 3.6 D. 6.0