Because when two lines intercept, the two opposite angles from the four angles that are created from the intercepted lines are always equal.
Step-by-step explanation:
![\frac{a}{ {r}^{3} } + h = d](https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%7D%7B%20%7Br%7D%5E%7B3%7D%20%7D%20%20%2B%20h%20%3D%20d)
![\frac{a}{ {r}^{3} } = d - h](https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%7D%7B%20%7Br%7D%5E%7B3%7D%20%7D%20%20%3D%20d%20-%20h)
![a = (d - h) \times {r}^{3}](https://tex.z-dn.net/?f=a%20%3D%20%28d%20-%20h%29%20%5Ctimes%20%20%7Br%7D%5E%7B3%7D%20)
Density of water = 1000 kg/m^3
1 m^3 = 1000 litres
Therefore,
1000 kg/1000 l => 1 kg/l => 1000 g/l
Then, 300 g of water = 300/1000 l = 0.3 l
The concentration of the syrup = mass/amount of water = 60 g/0.3 l = 200 g/l
Answer:
(-11, 1)
Step-by-step explanation:
x-values are horizontal and y-values are vertical
so add -4 to -7 to get -11
add 0 to 1 to get 1
new point is at (-11,1)