Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (anonymous):

I'm so confused on this vector problem! Can someone help please! Let u = <-6, -2>, v = <-2, 3>. Find -3u + 2v. The answer choices are <14, 12> <22, 0> <14, 1> <24, -3>

OpenStudy (jdoe0001):

\(\bf u=<a,b>\qquad v=<c,d>\\ \quad \\ -3u+2v\implies -3\times <a,b>\quad +\quad 2\times <c,d>\)

OpenStudy (anonymous):

Do I add a and b together or multiply?

OpenStudy (jdoe0001):

well, is scalar multiplication first, then addition of the products

OpenStudy (anonymous):

<14,12>?

OpenStudy (jdoe0001):

well... what did you get?

OpenStudy (anonymous):

that's what I got

OpenStudy (jdoe0001):

then that's it :)

OpenStudy (anonymous):

Thank you!!

OpenStudy (jdoe0001):

yw

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!