Find the circumference of the circle whose radius or diameter is given. Use 
or 
as indicated. d = 18 mi. Use ? ? 3.14.
A. C ? 113.04 mi
B. C ? 254.34 mi
C. C ? 28.26 mi
D. C ? 56.52 mi
Answer: D
Mathematics
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.y = x7 - e
A. (6 - e)x7 - e
B. (7 - e)x6 - e
C. 
D. x7 - e
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Factor completely, if possible.49y4 - 16
A. (7y2 + 4)2 B. (7y2 - 4)2 C. (7y2 + 4)(7y2 - 4) D. (49y2 + 1)(y2 - 16)
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Determine whether the number is abundant or deficient.65
A. Deficient B. Abundant
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Find all real solutions. Do not use a calculator.x4 - 81 = 0
A. {±18} B. {±3} C. {±6} D. {±9}
Mathematics