Solve the problem.Find the centroid of the infinite region in the first quadrant bounded by the coordinate axes and the curve 
.
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Answer: B
Mathematics
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Write the number in scientific notation.0.05 × 107
A. 0.5 × 106 B. 5 × 10<6 C. 5 × 105 D. 5 × 109
Mathematics
Write the percent as a decimal.13%
A. 0.13 B. 0.02 C. 0.013 D. 1.3
Mathematics
Make an approximate conversion as indicated. Round to the nearest tenth. The precise value of your approximation will depend on the conversion path that you choose.159 lb = 
kg
A. 349.8 kg B. 168.5 kg C. 403.9 kg D. 71.6 kg
Mathematics
Solve by using the quadratic formula.
q2 - q + 2 = 0
A. 
, -6
B. 
, 6
C. - 
, -6
D. - 
, 6
Mathematics