Answer:
D) 100 ≤ y ≤ 400
Explanation:
When we are talking about range, we are talking about y values, so B is disqualified.
When determining range you want the lowest & highest y values.
On this graph the lowest value of y is 100 (seen between 5 and 6 seconds).
The highest value of y is 400 (seen at 8 seconds).
Therefore, 100 ≤ y ≤ 400.
Answer:
20
Step-by-step explanation:
Scale factor = 8/16 = 1/2
So, 10/x = 1/2
x = 10*2
x = 20
To increase by 2% you multiply to get 1102*0.02=22.04. You then add that to 1102, getting 1124.04. To then decrease it by 1% you multiply to get 1124.04*0.01=11.24. Subtract 11.24 from 1124.04 to get a final answer of 1112.8
It would take 2 hours. To complete the whole lawn you would need:
![\frac{8}{8}](https://tex.z-dn.net/?f=%20%5Cfrac%7B8%7D%7B8%7D%20)
To make a whole, so to get that we multiply:
![8 \times \frac{1}{8} = \frac{8}{8}](https://tex.z-dn.net/?f=8%20%5Ctimes%20%20%5Cfrac%7B1%7D%7B8%7D%20%20%3D%20%20%5Cfrac%7B8%7D%7B8%7D%20)
So we use the same number required for the whole lawn, and multiply it times the hours