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OpenStudy (anonymous):
what is the length (magnitude) of the vector (-4 2) A. 5 B. 3 C. root 2 D. root 20
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OpenStudy (danjs):
The length of the hypotenuse of a triangle, with side lengths of 4 and 2
OpenStudy (danjs):
\[\left| \left| <-4,2> \right| \right| = \sqrt{(-4)^2+2^2}\]
OpenStudy (anonymous):
@triciaal
OpenStudy (anonymous):
its precal @DanJS
OpenStudy (anonymous):
@jim_thompson5910
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OpenStudy (anonymous):
root 20? @DanJS
OpenStudy (triciaal):
yes
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