Find the mean for the given sample data.The normal monthly precipitation (in inches) for August is listed for 20 different U.S. cities. Find the mean of the data.
A. 3.09 in.
B. 3.27 in.
C. 2.80 in.
D. 2.94 in.
Answer: D
Mathematics
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Use the theorem that relates the sum of degrees to the number of edges to determine the number of edges in the graph.A graph with 7 vertices, one of degree 4, three of degree 3, and three of degree 1.
A. 4 edges B. 16 edges C. 12 edges D. 8 edges
Mathematics
Write the given Chinese numeral as a Hindu-Arabic numeral.
A. 840 B. 540 C. 940 D. 640
Mathematics
Evaluate the double integral over the given region.
R: 2 ? x ? 3, 2 ? y ? 3
A. 
2
B. ln 
C. 
D. 
2
Mathematics
Write the whole number in expanded form.30,570
A. 30,000 + 5000 + 70 B. 30,000 + 500 + 70 C. 3000 + 50 + 7 D. 3000 + 500 + 7
Mathematics