Answer:
2664
Step-by-step explanation:
9.25×36+(380÷20)×8
Answer:
The number is -1
Step-by-step explanation:
The equation for the first part is (2n+7)2. This is because "twice a number" is 2n and "7 is added" will make it 2n+7. The "sum is multiplied by two" Is multiplying everything by two. This will make it (2n+7)
The second part is -8n+2. Since a number is multiplied by negative eight it will be -8n. Then it is added by two.
Both equation equal each other the overall equation will be (2n+7)2=-8n+2
You will distribute. making it 4n+14=-8n+2
Add 8n to both sides making it 12n+14=2
subtract 14 from both sides making it 12n=-12
Divide both sides by 12 . making it number=-1
Given:
![g(x)=4x-6](https://tex.z-dn.net/?f=g%28x%29%3D4x-6)
To find:
The function
.
Solution:
we have,
![g(x)=4x-6](https://tex.z-dn.net/?f=g%28x%29%3D4x-6)
Put g(x)=y.
![y=4x-6](https://tex.z-dn.net/?f=y%3D4x-6)
Interchange x and y.
![x=4y-6](https://tex.z-dn.net/?f=x%3D4y-6)
Isolate y.
![x+6=4y](https://tex.z-dn.net/?f=x%2B6%3D4y)
![\dfrac{x+6}{4}=y](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%2B6%7D%7B4%7D%3Dy)
![y=\dfrac{x+6}{4}](https://tex.z-dn.net/?f=y%3D%5Cdfrac%7Bx%2B6%7D%7B4%7D)
Substitute
.
![g^{-1}(x)=\dfrac{x+6}{4}](https://tex.z-dn.net/?f=g%5E%7B-1%7D%28x%29%3D%5Cdfrac%7Bx%2B6%7D%7B4%7D)
![g^{-1}(x)=\dfrac{x}{4}+\dfrac{6}{4}](https://tex.z-dn.net/?f=g%5E%7B-1%7D%28x%29%3D%5Cdfrac%7Bx%7D%7B4%7D%2B%5Cdfrac%7B6%7D%7B4%7D)
![g^{-1}(x)=\dfrac{x}{4}+\dfrac{3}{2}](https://tex.z-dn.net/?f=g%5E%7B-1%7D%28x%29%3D%5Cdfrac%7Bx%7D%7B4%7D%2B%5Cdfrac%7B3%7D%7B2%7D)
Therefore, the correct option is (3).