Express as a product of prime factors.231
A. 21 ? 11
B. 3 ? 7 ? 11
C. 72 ? 3
D. 32 ? 11
Answer: B
Mathematics
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Find the area.
A. 15
m2
B. 19 m2
C. 9
m2
D. 7
m2
Mathematics
Find the center of the ellipse.
+ 
= 1
A. (0, 4) B. (5, 0) C. (0, 0) D. (5, 4)
Mathematics
Evaluate.-(80) + (-13)0
A. -5 B. -2 C. 0 D. 1
Mathematics
Solve the inequality.x2 - 81 > 0
A. (-?, -81) or (81, ?) B. (-9, 9) C. (-?, -9) or (9, ?) D. (-81, 81)
Mathematics