SOLUTION: Given u=(5,-3) and v=(2,9) find the dot product of 2u times v. Thanks

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Question 974721: Given u=(5,-3) and v=(2,9) find the dot product of 2u times v. Thanks
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
2u=(10,-6)
v=(2,9)
2u%2Av=10%2A2%2B%28-6%29%2A9
2u%2Av=-34