Find the missing length in the right triangle. If necessary, round to the nearest tenth.
?10 in.
A. 164.0 in.
B. 9.0 in.
C. 12.8 in.
D. 82.0 in.
Answer: C
Mathematics
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Perform the operation and give the answer as a fraction in lowest terms.
÷ 
A. - 
B. - 
C. - 
D. 
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Solve the problem.Find the center of mass of a thin infinite region in the first quadrant bounded by the coordinate axes and the curve 
if 
.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
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Write the improper fraction as a mixed number or a whole number.
A. 55
B. 
C. 55
D. 7
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Find the exact value of the expression.sin 220° cos 100° - cos 220° sin 100°
A. 
B. - 
C. - 
D. - 
Mathematics