Find the vector z, given u=‹-1, 3, 2›, v=‹1, -2, -2›, and w=‹5, 0, -5›. z= -7u + v - (1/5)w  I really dont even know where to begin with this problem please help.

1 Answer | Add Yours

rcmath's profile pic

rcmath | High School Teacher | (Level 1) Associate Educator

Posted on

In order to get the answer, you perform the scalar multiplication as give, so you multiply u by -7, v doesn't change, and multiply w by -1/5. Finally you add the resulting vectors. `z=<-7*(-1)+1-1/5*5,-7*3+(-2)-1/5*0,-7*2+(-2)-1/5*(-5)>` ``

We’ve answered 319,864 questions. We can answer yours, too.

Ask a question