tylerj31603 tylerj31603

07-07-2020
Mathematics

contestada

Given that r = (7,3,9) and v=(3,7,-9), evaluate r + v. A. (-21,-21,81) B. (10,10,0) C. (21,21,-81) D. (-10,-10,0)

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sqdancefan sqdancefan

07-07-2020

Answer:

B. (10, 10, 0)

Step-by-step explanation:

Each component of the sum is the sum of corresponding components:

r + v = (7, 3, 9) +(3, 7, -9) = (7+3, 3+7, 9-9) = (10, 10, 0)

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