Solve the problem.The repetitive nearest-neighbor algorithm for solving the Traveling Salesman Problem is
A. an approximate and efficient algorithm.
B. an optimal and inefficient algorithm.
C. an approximate and inefficient algorithm.
D. an optimal and efficient algorithm.
E. none of these
Answer: A
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Write a numerical expression for the phrase and simplify it.The sum of 3 and -2, decreased by 3
A. [3 + (-2)] - 3; -2 B. [3 - (-2)] - 3; 2 C. [3 + (-3)] + 2; 2 D. [3 + (-2)] + 3; 4
Referring to triangle ABC, find the area of the triangle.
?
?
Round to three significant digits.
?
A. 37,200 inches2 B. 36,600 inches2 C. 37,100 inches2 D. 36,700 inches2 E. 37,000 inches2
Identify the type of graph.
+ 
= 1
A. The graph is an ellipse with foci on the x-axis . B. The graph is a circle with center at (7, 7) . C. The graph is a circle with center at (49, 49) . D. The graph is a circle with center at (0, 0) .
If PT is tangent to circle O at T and PL is a secant intersecting the circle at A and L so that PA < PL, then
(a) ?LTP = 90. (b) PT = PA. (c) ?LPT = 0.5( ). (d) AT ?TPA. (e) None of these is correct.