Answer
$u·v=45$
Work Step by Step
$u·v=⟨6,7⟩⋅⟨-3,9⟩=6(-3)+7(9)=-18+63=45$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 8 - Review Exercises - Page 617: 69
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