Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = -i + 4j, w = 2i - 2j
A. 149°
B. 59°
C. 1.7°
D. 72.5°
Answer: A
Mathematics
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Provide an appropriate response.Which one of the following is an example of a pair of like terms?
A. -8s2x, 6sx2 B. 4xw, 8wx C. 8t, 9w D. 9t2, 4t3
Mathematics
Find the exact value of the expression.
A. 
B. 
C. 2
D. 
Mathematics
Check the addition. If the answer is incorrect, find the correct answer.
15,289
A. Incorrect; should be 14,289 B. Incorrect; should be 15,189 C. Correct D. Incorrect; should be 15,399
Mathematics
Solve the problem.City A has an elevation of 14,949 feet above sea level while City B has an elevation of 19,590 feet below sea level. Represent the difference in elevation between these two cities by an integer.
A. 34,639 ft B. 4641 ft C. 4741 ft D. 34,539 ft
Mathematics