Answer:
90.2
Step-by-step explanation:
4 feet is 48 inches.
So 4'2" would be 50 inches.
50/5=10
The class needs to make 10 tiles.
Answer:
Option B
Step-by-step explanation:
The slope of the line BC is,
![\frac{ - 2 - 8}{7 - 3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20-%202%20-%208%7D%7B7%20-%203%7D%20)
![= \frac{ - 10}{4} = - \frac{5}{2}](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B%20-%2010%7D%7B4%7D%20%20%3D%20%20%20-%20%5Cfrac%7B5%7D%7B2%7D%20)
Since AD is altitude to BC, we can say AD is perpendicular to BC, so the slope of the line AD which is perpendicular line to BC will be,
![\frac{2}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B5%7D%20)
Answer:
In this option B is correct