Question

What is the magnitude of the vector (7, -4) to the nearest tenth?
2.4
5.7
8.1
9.0

Answer 1

Answer:

Step-by-step explanation:

Apply the Pythagorean Theorem:   hyp² = 7² + (-4)² = 49 + 16 = 65.

The magnitude of this vector <7, -4> is 8.1, to the nearest tenth.