Use unit ratios or conversion factors to change to the units indicated. Round to the nearest tenth, if necessary.31 cm to inches
A. 78.7 in.
B. 3.1 in.
C. 9.3 in.
D. 12.1 in.
Answer: D
Mathematics
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Solve the problem.Two forces, of 53.1 and 25.5 lb, forming an angle of 98.5°, act at a point in the plane. Find the magnitude of the resultant force.
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Perform the operation. Write the answer as a fraction in lowest terms.
+ 
A. 
B. 
C. 
D. 
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