Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.Write an equation for the tangent line to the curve 
at the point 
A. 
+ 
= 
B. 
+ 
= 1
C. 
+ 
= 
D. 
+ 
= 1
Solve for the indicated variable.F = 
C + 32 for C
A. C = 
(F - 32)
B. C = 
C. C = 
D. C = 
(F - 32)
Solve the problem.The path between three landmarks in a national park form a right triangle. The oldest living evergreen tree is at point A, the ranger station is at point B, and the natural hotspring is at point C. The right angle is at point C, and there is a 60° angle at point B. If the distance between the hotspring and the evergreen tree is 683 yards, find the distance, x, from the hotspring to the ranger station. Round to two decimal places if needed. 
A. 394.33 yd B. 965.91 yd C. 1182.99 yd D. 482.9539 yd
Use the given information to find the exact value of the trigonometric function.sin ? = 
, tan ? > 0
Find cos 
.
A. 
B. 
C. 
D. 