Find the exact value of the expression. Do not use a calculator.tan 15° - 
A. -1
B. 0
C. 1
D. 2
Answer: B
Mathematics
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Solve the problem. Round to the nearest tenth if necessary.Avegail needs to determine the distance at certain points across a lake. Her crew and she are able to measure the distances shown on the diagram below. Find how wide the lake is to the nearest tenth of a meter.
A. 50 m B. 111.8 m C. 7.1 m D. 86.6 m
Mathematics
Find the area of the square. 
A. 32 sq mi B. 64 sq mi C. 67 sq mi D. 60 sq mi
Mathematics
Find the slope of the line containing the given pair of points. If a slope is undefined, state that fact.
and 
A. -1
B. 1
C. 0
D. 
Mathematics
Use estimation to determine which calculation is incorrect.
A. 
B. 
C. 
D. 
Mathematics