Pls help for this pre calc question 25 points rewarded!
1 answer:
Let's check the dot product .
v.w = 5(4)-2(10) = 20 -20 =0
So the dot product is not 20 . And since the dot product is zero, so they are perpendicular.
And the y component of w is 10.
So correct options are first and third .
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200
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18 × 10 = 180
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The answer is the letter B
