The magnitude of a vector is simply the<span> Pythagorean Theorem!
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a=8, b=-6

magnitude = 10
Unit vector: (8/10, -6/10).
Divide by 10!(magnitude)
The correct answer would be D, (3,-4). For the first equation, x=2y+11 would be 3=2(-4)+11 which turns to 3=-8+11 which equals 3=3 so it’s true. For the second equation, 7x+2y=13 which becomes 7(3)+2(-4)=13 making it 21-8=13 which turns into 13=13 so this is true as well.
Answer:
x= -1 9/32
Step-by-step explanation:
8 x 6 = 42 add two zeros so 4200