Answer:
11.4
Step-by-step explanation:
Find the distance in the x-direction between the x-components: 2 - (-7) = 9.
Similarly: between the y-components: 1 - (-6) = 7
Apply the Pythagorean Theorem: 9^2 + 7^2 = d^2, where d is the desired distance:
81 + 49 = d^2, or d^2 = 130
The distance d is approximately √130 ≈ 11.4
Answer:
d=1/2
Step-by-step explanation:

3x - 2 = x + 10
So, 2x = 12 and x = 6
Cos 210° = cos ( 180° + 30° ) - cos 30° = - √3/2
108/9=12 is a true statement