<u>1) </u> 
2) Rectangular shape is square shape patio !
<u>Step-by-step explanation:</u>
Here we have , the area of Bianca’s rectangular backyard patio is represented by the expression x2 – 18x + 81, and the length of the patio is represented by the expression x − 9: We need to find
1. what is the expression for the width of the patio? Explain and show all work.
We know that area of rectangle = 
⇒ 
Factorizing RHS:
⇒ 
⇒ 
⇒ 
⇒ 
2. what special rectangular shape is the patio?
Now , we see that

A rectangle whose length & width are equal is known as a square ! Hence , Rectangular shape is square shape patio !
Answer:
Step-by-step explanation:
In this case we know the composition of f and g is

Thus if we change x by 3 we get

Answer:
Red.
Step-by-step explanation:
Love the doodles.
Answer:
x =
Step-by-step explanation:
![\frac{3}{8}-x=[tex]\frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D-x%3D%5Btex%5D%5Cfrac%7B1%7D%7B4%7D)
⇒ Minus
from both sides
- x =
⇒ Multiply both sides by -1 to get rid of negative
x =
D. 44
4.5•2=9
9•3.14=28.26
28.28 rounds down to 28cm
11.5•2=23
23•3.14=72.22
72.22 rounds down to 72cm
72-28=44