Answer:
x should be 1
I think if you substitute it will just be the index 2 that remains , not sure though .You should probably ask your teacher for assistance
2 tens, and 8 ones. I say this because 20 = 10 + 10 so, two tens. 8= 1+1+1+1+1+1+1+1 so, eight ones.
=(3a-4a-3a)+(2b+6b-2b)+(-7c+9c-7c)
=-4a+6b-5c #
Answer:
A=πr²=π·3²≈28.27433
To find the area of a circle, use the equation πr²
The image is a bit blurry so from what I saw r (radius) is 3 otherwise you can use this equation if r is not 3.
If π was replaced with 3.14 the answer is 28.26 ft².
