Sunday

April 20, 2014

April 20, 2014

Posted by **Mary** on Saturday, April 20, 2013 at 4:15pm.

Given u = 4i - 6j and v = -3i + 5j, find 4u-(1/2)v

Am I just supposed to plug in what u and v are equal to in 4u-(1/2)v? If so, is the answer (35/2i - 53/2j)

- Trig -
**Steve**, Sunday, April 21, 2013 at 6:18amlooks good to me.

Yep, just do a scalar multiply on u,v and add the i,j values separately.

**Related Questions**

Math - Vectors - If "u = (2,2,-1)", "v = (3,-1,0)" and "w = (1,7,8)", verify ...

Chemistry - Hi everyone, I really need help with this problem. What is the ...

Science - Which of the following brake fluids is a strong paint solvent? DOT 1 ...

math - Two matrices can be multiplied only if their sizes are compatible. ...

matrices - Two matrices can be multiplied only if their sizes are compatible. ...

general math - here's an easy one for starters... what means greater or equal to...

calculus - Find two unit vectors that make an angle of 60° with v = ‹3, 4›. Give...

trig - Find the dot product a*b. a= (5,-9), b=(4,-3)

physics - For the vectors in the figure below, with a = 8, b = 7, and c = 113, ...

Math: Cross Product - Prove that | a x b | = (sqrt) [(a (dot) b)(b (dot) b) - (a...