Solve the problem.Which of the following statements is true about Kruskal's algorithm.
A. It is an efficient algorithm, and it always gives the minimum spanning tree.
B. It is an efficient algorithm, but it doesn't always give the minimum spanning tree.
C. It is an inefficient algorithm, and it never gives the minimum spanning tree.
D. It is an inefficient algorithm, but it always gives the minimum spanning tree.
E. none of these
Answer: A
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 0.46 B. 0.865 C. 0.4481 D. 0.4169
Find the area of a sector with the given central angle ? in a circle of radius r.? = 
, r = 12 cm
A. 36? sq cm B. 72? sq cm C. 6? sq cm D. 3? sq cm
Provide the proper response. Show all fractions in simplest form.Write a fraction to represent the shaded portion of the figure.
A. 
B. 
C. 
D. 
Factor completely. If the polynomial is prime, state so.a3b3 + 64
A. (ab + 4)(a2b2 - 4ab + 16) B. (ab - 4)(a2b2 + 4ab + 16) C. (ab - 4)(a2b2 + 16) D. (ab + 4)(a2b2 - 16)