D is right because there is not tire
FOIL this out. 3x*x = 3x^2; 3x*8= 24x; -8*x = -8x; -8*8=-64. Combine like terms to get
The domain is all real numbers, since x can be any number and create a y value
This can be written in a few ways, including:
X:X
X: R
-(infinity sign) is less than or equal to X is less than or equal to (infinity sign)
Answer:
.
It means that 673 of 9 inch tiles are required to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.
Step-by-step explanation:
Given:
The function relating number of 9 inch tiles required and area to cover is:

Now, plug in 400 for
to evaluate
.

Therefore, Don required 673 of 9 inch tiles to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.
"fifty thousand six hundred and seventy nine" and 50,000 + 600 + 70 + 9