Answer:
b
Step-by-step explanation:
its b
Answer: 130 kg 920 g
Step-by-step explanation:
Given
The weight of the goat is 59 kg 720 g
The combined weight of goat and cow is 190 kg 640 g
Suppose, the weight of the cow is x kg
We know, 1 kg=1000 g
Converting weight into kg
Goat weight
![=59+0.720\\=59.720\ kg](https://tex.z-dn.net/?f=%3D59%2B0.720%5C%5C%3D59.720%5C%20kg)
Total weight
![=190+0.640\\=190.640\ kg](https://tex.z-dn.net/?f=%3D190%2B0.640%5C%5C%3D190.640%5C%20kg)
Then, the cow weight is given by
![\Rightarrow 190.640-59.720\\\Rightarrow 130.920\ kg\ \text{or}\ 130\ kg\ 920\ g](https://tex.z-dn.net/?f=%5CRightarrow%20190.640-59.720%5C%5C%5CRightarrow%20130.920%5C%20kg%5C%20%5Ctext%7Bor%7D%5C%20130%5C%20kg%5C%20920%5C%20g)
Answer: Yes, ![\bold{f^{-1}(x)=\dfrac{x+6}{3}}](https://tex.z-dn.net/?f=%5Cbold%7Bf%5E%7B-1%7D%28x%29%3D%5Cdfrac%7Bx%2B6%7D%7B3%7D%7D)
<u>Step-by-step explanation:</u>
f(x) = 3x - 6 is a line so it is a function because
it passes the vertical line test
and the horizontal line test
To find the inverse, swap the x's and y's and solve for y
![y=3x-6\\\\\\\text{Swap the x's and y's:}\qquad x=3y-6\\\\\text{Add 6 to both sides:}\qquad x+6=3y\\\\\text{Divide both sides by 3:}\qquad \dfrac{x+6}{3}=y](https://tex.z-dn.net/?f=y%3D3x-6%5C%5C%5C%5C%5C%5C%5Ctext%7BSwap%20the%20x%27s%20and%20y%27s%3A%7D%5Cqquad%20x%3D3y-6%5C%5C%5C%5C%5Ctext%7BAdd%206%20to%20both%20sides%3A%7D%5Cqquad%20x%2B6%3D3y%5C%5C%5C%5C%5Ctext%7BDivide%20both%20sides%20by%203%3A%7D%5Cqquad%20%5Cdfrac%7Bx%2B6%7D%7B3%7D%3Dy)