Solve the problem.A nail 4
inches long is driven into a board 
thick. How much of the nail protrudes from the other side of the board?
A. 
in.
B. 1
in.
C. 3
in.
D. 
in.
Answer: B
Mathematics
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Evaluate the function 
without using a calculator.
a. –3 b. –1 c. 25 d. –2
Mathematics
Solve the problem.Plot the point 
and find other polar coordinates (r, ?) of the point for which:(a) r > 0, -2? ? ? < 0(b) r < 0, 0 ? ? < 2?(c) r > 0 2? ? ? < 4? 
What will be an ideal response?
Mathematics
The point P(x, y) on the unit circle that corresponds to a real number t is given. Find the values of the indicated trigonometric function at t.
?Find cot t.
A. 
B. 
C. - 
D. - 
Mathematics
Solve the rational equation. Be sure to verify the results.
- 
= 
+ 
A. {-1} B. {1} C. {0, 1} D. {0, -1}
Mathematics