Evaluate without using a calculator by using ratios in a reference triangle.sec 240°
A. -2
B. - 
C. 2
D. 
Answer: A
Mathematics
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Express the vector as a product of its length and direction.2j + 
k
A. 
B. 
C. 
D. 
(j + k)
Mathematics
Provide an appropriate response.Change 
to an improper fraction.
A. 
B. 
C. 
D. 
Mathematics
Find the exact value. If any are not defined, write undefined.tan(-180°)
A. 0 B. 1 C. Undefined D. -1
Mathematics
Convert the units.36,960 feet = 
miles
A. 184.8 B. 8 C. 7.5 D. 7
Mathematics