QUESTION 1
The given circle has equation:

We can rewrite to obtain;

This is equation is now in the form;

Where (h,k)=(0,0) is the center of the circle and
is the radius.
QUESTION 2
The center of the circle is at (1,1) and passes through the point (4,5).
The radius of this circle is given by;




units.
We substitute into the formula;



Expand if you wish;



Answer:
10b +13 +18a
Step-by-step explanation:
The perimeter of a triangle= Sum of the length of all sides
Therefore,
Perimeter = (10a +9) + (8a - 3) + (10b + 7)
= 10a +8a +10b + 9+7-3
= 18a + 10b + 13
To solve this problem you must apply the proccedure shown below:
1. You know that the sum of the angles is
degrees. Therefore, you must sum them and solve for
:

degrees
2. Therefore, the angles are:
degrees
degrees
The answers are:
degrees
degrees,
degrees,
degrees,
degrees
Flip the fraction to make the -3 exponet positive then it will be 9x^5/3x^3 which the answer would then be 3x^2