The formula for the area of a circle is

We know the diameter, and the radius is half of the diameter. So the radius is 9. Now we plug that into the formula.

So the answer is B, 81 pi square feet
Answer:
3
Step-by-step explanation:
The solution to a system of equations is the intersection point of two or more lines on a graph.
In this case, we see that at (1, 3)
Remember that this question is asking for the y intercept, not the full coordinates or the x intercept.
We know that the full coordinates are (1, 3), or (x, y), and since we need y, we know the y cooridnates are 3, not 1, since this is x.
So the first answer, A, is correct.
Hope this helps!
Answer:
Radius: 4.2 cm
Diameter: 8.4 cm
Step-by-step explanation:
Radius: The number that is half the circle.
Diameter: The radius times 2
The answer would be
4d+2.75p=12
Answer:
H) 0.75
Step-by-step explanation:
4.5 divided by 6 is 0.75
We don't use remainders in algebra for the most part. We have to do regular division. I'll try to show it here:
____._7___5_____________
6 ) 4 . 5 0
4 . 2
____________
0 . 3 0
0 . 3 0
_____________
0