Find the area of a sector of a circle having radius r and central angle ?. If necessary, express the answer to the nearest tenth.r = 7.0 mi, ? = 268°
A. 16.4 mi2
B. 38.3 mi2
C. 229.2 mi2
D. 114.6 mi2
Answer: D
Mathematics
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A set of n = 15 pairs of scores (X and Y values) has SSX = 4, SSY = 25, and SP = 6. What is the Pearson correlation for these data?
a. 6/(10/sqrt(15)) b. 6/10 c. 6/(100/15) d. 6/100
Mathematics
Solve the problem.Suppose that the odds of winning the grand prize in a raffle are 1 to 7. What is the probability of winning the grand prize?
A. 
B. 
C. 
D. 
E. none of these
Mathematics
Find the sum of the first n terms of the arithmetic sequence.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Find the prime factorization of the number.26
A. 2 ? 2 ? 2 B. 2 ? 14 C. 2 ? 13 D. 2 ? 2 ? 5
Mathematics