What is 5-8|-2n|=-75? And I know it is not n=5 or -5 Please Help!
1 answer:
Answer:
n = -5
I think the answer is -5, because:
The last number in the operation has a negative sign.
This can be a reason that it is-5.
Hope it helps!
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Answer:
![\vec{BC}=2b - 4a](https://tex.z-dn.net/?f=%20%5Cvec%7BBC%7D%3D2b%20-%204a%3C%2Fp%3E%3Cp%3E)
![\vec{XY}=a+ b](https://tex.z-dn.net/?f=%20%5Cvec%7BXY%7D%3Da%2B%20b%20)
![\vec {CY}=a - 2b](https://tex.z-dn.net/?f=%5Cvec%20%7BCY%7D%3Da%20-%202b)
Step-by-step explanation:
By the triangular law of vector addition:
![\vec {CY}=\vec {CA}+ \vec{AY}](https://tex.z-dn.net/?f=%5Cvec%20%7BCY%7D%3D%5Cvec%20%7BCA%7D%2B%20%5Cvec%7BAY%7D)
![\vec {CY}=a - 2b](https://tex.z-dn.net/?f=%5Cvec%20%7BCY%7D%3Da%20-%202b)
We have that;
![\frac{YB}{AY} = \frac{3}{1}](https://tex.z-dn.net/?f=%5Cfrac%7BYB%7D%7BAY%7D%20%3D%20%20%5Cfrac%7B3%7D%7B1%7D%20)
![\implies YB = 3 AY \\ \vec {YB} = 3 \vec {AY}](https://tex.z-dn.net/?f=%20%5Cimplies%20YB%20%3D%203%20AY%20%5C%5C%20%20%5Cvec%20%7BYB%7D%20%20%3D%203%20%20%5Cvec%20%7BAY%7D%20)
![\vec {YB} = 3 a](https://tex.z-dn.net/?f=%5Cvec%20%7BYB%7D%20%20%3D%203%20a)
From triangle ABC,
![\vec{BC}=\vec{BA}+\vec{AC} \\ \vec{BC}=2b - 4a](https://tex.z-dn.net/?f=%5Cvec%7BBC%7D%3D%5Cvec%7BBA%7D%2B%5Cvec%7BAC%7D%3C%2Fp%3E%3Cp%3E%20%5C%5C%20%5Cvec%7BBC%7D%3D2b%20-%204a%3C%2Fp%3E%3Cp%3E)
Again from triangle XYB
![\vec{XY}=\vec{YB}+\vec{BX} \\](https://tex.z-dn.net/?f=%5Cvec%7BXY%7D%3D%5Cvec%7BYB%7D%2B%5Cvec%7BBX%7D%20%5C%5C%20)
![\vec{XY}=\vec{YB}+ \frac{1}{2} \vec{BC}](https://tex.z-dn.net/?f=%5Cvec%7BXY%7D%3D%5Cvec%7BYB%7D%2B%20%5Cfrac%7B1%7D%7B2%7D%20%5Cvec%7BBC%7D)
![\vec{XY}=3a+ \frac{1}{2} (2b - 4a)](https://tex.z-dn.net/?f=%5Cvec%7BXY%7D%3D3a%2B%20%5Cfrac%7B1%7D%7B2%7D%20%282b%20-%204a%29)
![\vec{XY}=3a+ b - 2a \\ \vec{XY}=a+ b](https://tex.z-dn.net/?f=%5Cvec%7BXY%7D%3D3a%2B%20b%20-%202a%20%5C%5C%20%5Cvec%7BXY%7D%3Da%2B%20b%20)
Answer:
-3 f
ithink
Step-by-step explanation:
Answer:
1) A) Increases
2) C) Stays the same
Step-by-step explanation:
1) A) Increases (94 to 95)
2) C) Stays the same (95)
Answer:
5
Step-by-step explanation:
Verticle angles are the angles opposite of each side.
Minus 9x from both sides
-3y=-9x+12
divide both sides by -3
y=3x-4