Answer:
The answer would be 24, not perpendicular.
This is right, because I can verify that this is correct since I just did the practice :) Hope I was able to help you.
Step-by-step explanation:
You are given (4, 9, -3) . (-6, 7, 5).
So you first would need to multiply. You would get:
(-6 * 4) + (7 * 9) + (5 * -3)
-24 + 63 - 15
So when you add and subtract those numbers, you would get 24. Since 24 does not equal to 0, these vectors will not be perpendicular.
