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denis-greek [22]
2 years ago
15

The dot product of u ∙ u = 45 what is the length of u?

Mathematics
2 answers:
s344n2d4d5 [400]2 years ago
5 0

Answer:

67 hah why you solve this

EleoNora [17]2 years ago
5 0

\textbf{u} \cdot \textbf{u} = 45\\\\\implies |\textbf{u}|^2 =45\\\\\implies |\textbf{u}| = 3\sqrt{5}

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The number of coach tickets bought was 9 and the number of first class tickets bought was 6

Step-by-step explanation:

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y ---> the number of first class tickets bought

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using a graphing tool

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see the attached figure

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