? is a central angle that cuts off an arc of length s. Find the radius of the circle if 
, s = ? cm.
?
A. 9 cm
B. 14 cm
C. 12 cm
D. 12.1 cm
E. 13 cm
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Simplify. Assume that no denominator is zero and 00 is not considered.-5n5 ? 3n8
A. -2n40 B. -15n13 C. -15n40 D. -2n13
Mathematics
Factor the expression completely. If the polynomial is prime, state this as your answer.x3 + 27
A. (x + 3)(x2 - 3x + 9) B. (x - 27)(x2 - 1) C. (x - 3)(x2 + 3x + 9) D. (x + 3)(x2 + 9)
Mathematics
Find the exact value of the expression.cos 
A. 
B. 
C. 
D. 1
Mathematics