Find the angle between v and w. Round your answer to one decimal place, if necessary.v = -5i + 7j,
w = -6i - 4j
A. 20.7°
B. 110.8°
C. 90.9°
D. 88.2°
Answer: D
Mathematics
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A. 
B. 
C. 
D. 
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Translate the percent problem to a proportion using x for the unknown value. Do not solve the proportion.50% of 86 is what?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
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Find the exact value of the trigonometric expression without the use of a calculator.
A. -2
B. - 
C. - 
D. -
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Mathematics