205k views
0 votes
Evaluate the following expression: 4(3,5) -2(7,-2) A. (-1,18) B. (-2,24) C (-4,7) D. (16,16)

2 Answers

2 votes
I Think The Answer is B) (-2,24)
User Rolle
by
7.0k points
4 votes

Answer: B. (-2, 24)

Explanation:

First, you need to multiply the vectors by the scalars. To do this, you simply multiply the scalar by each component of the vector:


4(3, 5)-2(7, -2)=(12, 20)+(-14, 4)

And then you add the vectors by adding the corresponding components:


(12, 20)+(-14, 4)=(12-14, 20+4)=(-2, 24)

So the answer is option B.

User Kizu
by
7.0k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.