Let v and w be two vectors in the plane with given magnitudes. The angle between v and w is ?. Find the expression. Round the answer to the nearest tenth.
= 6, 
= 15, ? = 44°
Find 
A. 11.5
B. 19.8
C. -108.5
D. 16.2
Answer: B
Mathematics
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, passing through (4, 4)
A. y = - 
x - 
B. y = - 
x + 
C. y = - 
x + 
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Solve the problem.A collection of dimes is arranged in a triangular array, with 15 coins in the base row, 14 in the next, 13 in the next, and so forth. Find the value of the collection.
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