Solve the problem. Round results to an appropriate number of significant digits.A fire is sighted due west of lookout A. The bearing of the fire from lookout B, 
due south of A, is 
How far is the fire from B (to the nearest tenth of a mile)?
A. 20.9 mi
B. 18.9 mi
C. 21.9 mi
D. 19.9 mi
Answer: B
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Determine whether the study involves selection bias, participation bias, both selection bias and participation bias, or neither."38% of adults in the United States regularly visit a doctor". This conclusion was reached by a college student after she had questioned 520 randomly selected members of her college.
A. Selection bias B. No bias C. Participation bias and selection bias D. Participation bias
Insert either < or > to make a true statement.4 ___ -7
A. < B. >
Write a word name for the number in the sentence.The volume of water in Lee's bottle is 6.763 liters.
A. Six and seven hundred sixty-three millionths B. Six and seven hundred sixty-three thousandths C. Six and seven hundred sixty-three hundredths D. Six and seven hundred sixty-three tenths
Use the row transformation described to transform the matrix.
A. 
B. 
C. 
D. 