By the what? I may be able to help you on this problem,but what is the rest?
Answer:
k
Step-by-step explanation:
no
Answer:
|EF|=18
Step-by-step explanation:
Using the mid-segment theorem of a trapezoid, ![|EF|=\frac{1}{2}(|AD|+|BC|)](https://tex.z-dn.net/?f=%7CEF%7C%3D%5Cfrac%7B1%7D%7B2%7D%28%7CAD%7C%2B%7CBC%7C%29)
We substitute the expressions for the sides and solve for x.
![4x+6=\frac{1}{2}(6+9x+4)](https://tex.z-dn.net/?f=4x%2B6%3D%5Cfrac%7B1%7D%7B2%7D%286%2B9x%2B4%29)
This implies that:
![4x+6=\frac{1}{2}(9x+9)](https://tex.z-dn.net/?f=4x%2B6%3D%5Cfrac%7B1%7D%7B2%7D%289x%2B9%29)
Multiply through by 2 to get:
![8x+12=9x+9](https://tex.z-dn.net/?f=8x%2B12%3D9x%2B9)
Group and combine like terms to get:
![12-9=9x-8x](https://tex.z-dn.net/?f=12-9%3D9x-8x)
![x=3](https://tex.z-dn.net/?f=x%3D3)
![|EF|=4(3)+6=18](https://tex.z-dn.net/?f=%7CEF%7C%3D4%283%29%2B6%3D18)
Answer:
he has run 14 miles
Step-by-step explanation:
Answer:
Ratio is 236 : 241
Step-by-step explanation:
Lake County’s smallest forest preserve is 472 acres. Orange County’s smallest preserve is 482 acres
Lake County’s smallest forest = 472
Orange County’s smallest = 482
To find ratio we make a fraction
Ratio = Lake County’s forest / Orange County’s forest
= ![\frac{472}{482}](https://tex.z-dn.net/?f=%5Cfrac%7B472%7D%7B482%7D)
Now simplify the fraction
divide top and bottom by 2
![\frac{236}{241}](https://tex.z-dn.net/?f=%5Cfrac%7B236%7D%7B241%7D)
Ratio is 236 : 241