Question

I NEED THIS RIGHT NOW PLEASE

Find the magnitude of the vector.
171 - 39;
A) 170
© V1810 ~ 42.544
B) 34
D) 39

Answer 1

Answer: Choice C

Explanation:

The Magnitude of a Vector

Given a vector in the form:

`\mathbf{v}=x\mathbf{i}+y\mathbf{j}`

The magnitude of the vector is:

`\mid\mid \mathbf{v}\mid\mid=√(x^2+y^2)`

We are given the vector:

`\mathbf{v}=17\mathbf{i}-39\mathbf{j}`

The magnitude is:

`\mid\mid \mathbf{v}\mid\mid=√(17^2+(-39)^2)`

`\mid\mid \mathbf{v}\mid\mid=√(289+1521)=√(1810)`

Answer: Choice C