Pythagorean theorem.
a^2+b^2=c^2
6^2+7^2=c^2
36 + 49 = c^2
85 = c^2
sqrt of 85 = 9.22
So the best answer would be C. 9
By using the general formula for a reflection across the x-axis, we will see that the new coordinates of the center are (-3, -4)
<h3>
Where will be the center of the new circle?</h3>
For any point (x, y), if we perform a reflection across the x-axis, the only thing we are doing is changing the sign of the y-component.
So the reflection is:
(x, y) → (x, -y)
In this case, we are reflection a circle whose center is (-3, 4), so the new coordinates of the center of the circle are:
(-3, 4) → (-3, -4)
The center of the reflected circle is at (-3, -4)
Laern more about reflections:
brainly.com/question/4289712
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1gal is bigger then 15 c if it had one more c it would be the same
Answer:
4+36x
Process:
4(1+9x)
Multiply 4 by the parentheses
=4*1+4*9x
=4+36x
I hope this helped! If it did, a brainliest would be much appreciated :)