? = central angle of a circle, r = radius of the circle, s = length of the intercepted arc, 
speed, 
speed, and t = time. Find the missing quantity. Give an exact answer unless otherwise indicated.r = 4 inches, s = 7 inches, ? = ?
A. 0.57 radian
B. 1.75 radians
C. 2 radians
D. 1.5 radians
Answer: B
Mathematics
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What will be an ideal response?
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Simplify. Assume that all variables represent positive numbers.
A. 3xy2
B. 3x2
C. 3x
D. 3xy
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Graph the given line.x + 7.5 = 0
A. 
B. 
C. 
D. 
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Find the perimeter.
A. 132 m B. 108 m C. 90 m D. 66 m
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