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Answer:
Circumference of the circle drawn by Ginna is twice the Circumference of the circle drawn by Pierce.
Step-by-step explanation:
Given:
Radius of the circle drawn by Pierce = 3 cm
We need to find circumference of gianna's circle compare with the circumference of Pierce's circle.
Solution:
Radius of the circle drawn by Pierce = 3 cm
so we will find the Circumference of circle drawn by Pierce.
Now we know that;
Circumference of the circle is given by 2 times π times radius of the circle.
framing in equation form we get;
Circumference of the circle drawn by Pierce =
Now Given:
Ginna draws a circle with a radius that is twice as long as the radius of pierce's circle.
So we can say that;
radius of the circle drawn by Ginna is equal to 2 times radius of circle drawn.
so we can say that;
radius of the circle drawn by Ginna =
Circumference of the circle drawn by Ginna =
Now we can see that;
Circumference of the circle drawn by Ginna is while Circumference of the circle drawn by Pierce is
So we can say that;
Circumference of the circle drawn by Ginna is twice the Circumference of the circle drawn by Pierce.
Since the first term in the equation is 
, you know that each group you make will have to have an x in it. Now, you need to figure out what times what equals 7 and adds up to 8. You can list all of the numbers that multiply to seven until you find the right numbers.
-1 x -7
1 x 7
1 and 7 add to eight and multiply to seven, so those will be the numbers in your groups. This makes your factored groups (x + 1)(x + 7).
-1 x -7
1 x 7
1 and 7 add to eight and multiply to seven, so those will be the numbers in your groups. This makes your factored groups (x + 1)(x + 7).