Find the expression.If v = 4i + j and w = -2i + j ; Find 
.
A. 
B. 6
C. 
D. 2
Answer: D
Mathematics
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Determine the number of spanning trees in the graph.
A. 12 B. 36 C. 35 D. 13
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Provide an appropriate response.Find the circumference of a circle with a radius of 5 in. (round to the nearest hundredth).
Fill in the blank(s) with the appropriate word(s).
Mathematics
Convert the degree measure to radian measure. Use the value of ? found on a calculator and round answers to three decimal places.81°48'15''
A. 1.422 B. 1.428 C. 81.804 D. 2.856
Mathematics
Find the correlation coefficient.The following are costs of advertising (in thousands of dollars) and the number of products sold (in thousands): 
A. 0.6112 B. -0.3707 C. 0.2635 D. 0.6756
Mathematics