Solve the problem.The angle of elevation from a point on the ground to the top of a tower is 39° 16'. The angle of elevation from a point 114 feet farther back from the tower is 24° 38'. Find the height of the tower. Round to the nearest foot.
A. 115 ft
B. 1190 ft
C. 130 ft
D. 119 ft
Answer: D
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Sketch an angle ? in standard position such that ? has the least positive measure and the given point is on the terminal side of ?.(4, -2) 
A. 
B. 
C. 
D. 
Add or subtract.
- 
A. 
B. 
C. 
D. 
Fill in the blank with one of the words or phrases listed below.
fractions represent the same portion of a whole.
A. Mixed number B. Equivalent C. Like D. Least common denominator
A function f is continuous at the point 
if the following conditions are satisfied.
?
1. 
is defined.
2. 
exists.
3. 
.
?
Determine the values of x, if any, at which the function is discontinuous. At each point of discontinuity, state the condition(s) for continuity that are violated.
?
?
? ?
A. 
; conditions 1, 2
B. 
; conditions 1, 2
C. 
; condition 3
D. 
; condition 2
E. Continuous everywhere