Find the reference angle for the given angle.109°
A. 19°
B. 81°
C. 71°
D. 29°
Answer: C
Mathematics
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Evaluate the integral.
dx
A. sin-1 
+ 
ln (
) + C
B. 
+ C
C. sin-1 
+ 
+ C
D. 
tan-1 
+ 
+ C
Mathematics
Evaluate the expression using the order of operations. 
+ 
A. -10 B. 18 C. -16 D. 28
Mathematics
Provide an appropriate response.A hiker falls to a ledge. The rescue workers want to know how far down the cliff the hiker is located. One worker finds angles of elevation to the hiker and to the second rescue worker at the top of the cliff. Determine the distance between the ledge that the hiker is on and the top of the cliff. 
A. 77.3 ft B. 45.5 ft C. 40.5 ft D. 72.4 ft
Mathematics
Simplify the expression.
?
What will be an ideal response?
Mathematics