Simplify the expression. If any variables exist, assume that they are positive.6
- 2
- 
A. 4x
B. 3x
C. 17x
D. 18x
Answer: C
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Solve the problem.A marina owner wishes to estimate a linear function that relates boat length in feet and its draft (depth of boat below water line) in feet. He collects the following data. Let boat length represent the independent variable and draft represent the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the draft for a boat 60 ft in length (to the nearest tenth)? 
A. 10.3 B. 9.7 C. 15.7 D. 10.5
Simplify. Include the absolute value symbol if necessary. If the answer is not a real number, state so.
A. 
B. 
C. 
D. 
Find the exact value of the expression.cos 
A. 
B. 
C. 
D. 
The point P on the unit circle that corresponds to a real number t is given. Find the indicated trigonometric function.
?Find tan t.
A. 
B. 
C. 
D. 