A circle has the area 126 
. To the nearest tenth of a centimeter, find the length of itsdiameter.
A. 6.3 cm
B. 12.7 cm
C. 19.0 cm
D. None of These
Answer: B
Mathematics
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Solve the problem.83 animals out of a total of 277 animals were treated for an illness. What percent of the animals were treated for the illness? Round to the nearest whole percent.
A. 28% B. 25% C. 30% D. 2770%
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Simplify the expression.(-10) ? (-5)
A. 60 B. 50 C. 55 D. -60
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Use a vertical format to add the polynomials.- 
x2 + 
x - 
A. - 
x2 - 4x - 
B. - 
x6 - 
C. - 
x2 - 
x - 
D. - 
x4 - 
x2 - 
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Find the exact value of the expression.sin ?
A. undefined B. -1 C. 0 D. 1
Mathematics