Question

Evaluate the following expression: -1(5,-1) + 2(1,1)

A. (5,-2)
B. (-3,3)
C. (5,-2)
D. (7,1)

Answer 1

Hint: use the scalar multiplication property:
s(a,b)=(sa+sb).
For example, 5(-2,1)=(5(-2),5*1)=(-10,5)

Answer 2

I need help with a different question

Answer 3

kool what is it

Answer 4

What is the length (magnitude) of the vector (-3,2)
A. \[\sqrt{2}\]
B. \[\sqrt{13}\]
C. 0
D. 3

Answer 5

Does anyone know this?

Answer 6

im working it out hold up please

Answer 7

it says im typing but i wasnt lol

Answer 8

is it square root of 13

Answer 9

It was square root of 13 thank you for trying to help though :D

Answer 10

ight finally its and nvm u got it i tried damn

Answer 11

You gt a medal for trying though :D

Answer 12

I have another question though

Answer 13

Evaluate the dot product of (2,4) and (1,-2)