Answer:
soil covered in grass because the soil is able to hold plenty of water while dry soil is lose and has cracks. lots of cracks.
Step-by-step explanation:
There is a rule:
One input(x-value) can only have one output(y-value) in order to be a function.
If one input has more than one output, it is not a function.
(This doesn't apply to outputs, one output can have more than one input and still be a function)
The 1st option is not a function because the inputs 9 and 10 have more than one output.
The 2nd option is not a function because the input 3 has more than one output.
The 3rd option is a function because each input only has one output.
The 4th option is not a function because the input 5 has more than one output.
Answer:
$74,550
Step-by-step explanation:
Answer:
b= 7 times the square root of 2
Step-by-step explanation: In a 45-45-90 degree triangle the base and the height both equal x and the hypotenuse is equal to x times the square root of 2.
Hope this helps
Answer:
a)
, b) ![\left(\frac{\sqrt{3}}{3}, \frac{1}{3} \right)](https://tex.z-dn.net/?f=%5Cleft%28%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B3%7D%2C%20%5Cfrac%7B1%7D%7B3%7D%20%20%5Cright%29)
Step-by-step explanation:
a) The constant of proportionality is:
![k = \frac{y}{x}](https://tex.z-dn.net/?f=k%20%3D%20%5Cfrac%7By%7D%7Bx%7D)
![k = \tan \theta](https://tex.z-dn.net/?f=k%20%3D%20%5Ctan%20%5Ctheta)
![k = \tan \frac{\pi}{6}](https://tex.z-dn.net/?f=k%20%3D%20%5Ctan%20%5Cfrac%7B%5Cpi%7D%7B6%7D)
![k \approx \frac{\sqrt{3}}{3}](https://tex.z-dn.net/?f=k%20%5Capprox%20%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B3%7D)
b) The ordered pair is:
![\left(\frac{\sqrt{3}}{3},\frac{\sqrt{3}}{3}\cdot \frac{\sqrt{3}}{3} \right)](https://tex.z-dn.net/?f=%5Cleft%28%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B3%7D%2C%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B3%7D%5Ccdot%20%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B3%7D%20%5Cright%29)
![\left(\frac{\sqrt{3}}{3}, \frac{1}{3} \right)](https://tex.z-dn.net/?f=%5Cleft%28%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B3%7D%2C%20%5Cfrac%7B1%7D%7B3%7D%20%20%5Cright%29)