Find the length of the arc on the circle of radius r meters intercepted by a central angle ?. Round your answer to three decimal places.r = 10, ? = 
radians
A. 1.885 m
B. 19.099 m
C. 10.472 m
D. 5.236 m
Answer: D
Mathematics
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Add. Do not use a number line except as a check.- 
+ 
A. 
B. - 
C. - 
D. 
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Use the graph of the function to estimate the x-intercepts.f(x) = -x2 + 4x + 5
A. x = 4, x = 5 B. x = -5, x = 1 C. x = -1, x = 5 D. x = -5, x = -1
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Simplify.3 ? 10 + 11 ? 7
A. 287 B. 261 C. 441 D. 107
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