Marcell12 Marcell12

14-06-2018
Mathematics

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Evaluate the following expression: -1(5,-1) + 2(1,1). A. (5,-2) B. (-3,3) C. (7,1) D. (-5,2)

Respuesta :

14-06-2018

[tex]-1[5;\ -1]+2[1,\ 1]=[(-1)(5);\ (-1)(-1)]+[(2)(1);\ (2)(1)]=[-5;\ 1]+[2;\ 2]\\\\=[-5+2;\ 1+2]=[-3;\ 3][/tex]
Answer: B

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mynameisofnoconcern mynameisofnoconcern

14-06-2018

I believe that the answer should be B

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