Solve the problem. Be sure to make a diagram of the situation with all the given information labeled.
?
A man wandering in the desert walks 2.5 miles in the direction 
. He then turns 90° and walks 3.3 miles in the direction 
. At that time, how far is he from his starting point, and what is his bearing from his starting point? Round the distance to one decimal place and the angle to the whole number.
??
A. The distance is 1.8 mi ; the man's bearing is 
.
B. The distance is 4.1 mi ; the man's bearing is 
.
C. The distance is 1.8 mi ; the man's bearing is 
.
D. The distance is 4.1 mi ; the man's bearing is 
.
E. The distance is 4.1 mi ; the man's bearing is 
.
Answer: B
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A. 0 B. ?, for all x C. 1 D. 2
Evaluate the integral by using multiple substitutions.
dy
A. 6 sin2 
+ C
B. 
cos4 
+ C
C. 
sin4 
+ C
D. 2 sin4 
+ C
Find the exact value of the expression using the provided information.Find cos(s + t) given that cos s = 
, with s in quadrant I, and 
with t in quadrant II.
A. - 
B. 
C. 
D. - 
The area of a triangle is 70 in2. Find the length of the side included between the angles 
.
?
Round to three significant digits.
?
A. 11.9 in B. 12.1 in C. 12.5 in D. 12.3 in E. 12.7 in