Elementary Linear Algebra 7th Edition

Published by Cengage Learning
ISBN 10: 1-13311-087-8
ISBN 13: 978-1-13311-087-3

Chapter 5 - Inner Product Spaces - 5.1 Length and Dot Product in Rn - 5.1 Exercises - Page 236: 77

Answer

$\$ 11877.5$. This means that the total income for one month is $\$ 11877.5$.

Work Step by Step

The dot product of $u \cdot v$ is $$u \cdot v=3140 \times 2.25+2750 \times 1.75=7065+4812.5=\$ 11877.5$$ This means that the total income for one month is $\$ 11877.5$.
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