Solve the problem.Find the length of the arc intercepted by a central angle of  in a circle of radius  Round to two decimal places.

A. 0.47 cm
B. 8.38 cm
C. 4.19 cm
D. 2.15 cm


Answer: C

Mathematics

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Use the appropriate sum or difference identity to write the given expression as a function of x alone.sin 

A. sin x B. -cos x C. -sin x D. cos x

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Subtract in the indicated base.

A. 327nine B. 237nine C. 238nine D. 227nine

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Determine between which two consecutive whole numbers each square root lies.

A. 8 and 9 B. 9 and 10 C. 7 and 8 D. 10 and 11

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Solve, finding all solutions in [0, 2?). Give an exact answer unless indicated otherwise.4.2 cos x + 2.1 = 0

A.
B.
C.
D.

Mathematics