The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Using Kruskal's algorithm, which edge should we choose second?
A. BF
B. AB
C. BD
D. AE
E. none of these
Answer: A
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Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Change the measurements on this scale drawing to decimals and round them to the nearest tenth of an inch. src="https://sciemce.com/media/4/ppg__util0627190914__f1q188g6.jpg" style="vertical-align: -17.0px;" /> in. length d is:
A. 0.2 in.
B. 0.3 in.
C. 0.1 in.
D. 0.4 in.
a 4
in. b 
in. c 
in. d 
in. e 2
A small business owner contributes $2,000 at the end of each quarter to a retirement account that earns an annual rate of 6.5% compounded quarterly. How long will it be until the account is worth $250,000? Round your answer to the nearest whole number. ?
A. 69 quarters B. 101 quarters C. 122 quarters D. 137 quarters E. 43 quarters
Select the table that represents solutions to the equation 
.
A. 
B. 
C. 
D. 