Find the coefficient of correlation of the line that best fits the data set.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: A
Mathematics
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Evaluate, if possible
A. 
B. 13
C. 28,561
D. Not a real number
Mathematics
Subtract.893 - 210
A. 667 B. 683 C. 693 D. 783
Mathematics
Solve the equation.(3x)2 = (3x + 6)2 - (x + 6)2
A. {0, 24} B. {-24} C. {-24, 0} D. {24}
Mathematics
Find the perimeter of the figure.
A. 
ft
B. 
ft
C. 
ft
D. 
ft
Mathematics