Answer:
Step 1 1200/ ?
Step-by-step explanation:
There is a mistake in the very first step
He is writing par over whole
100% is the original amount of tickets x
150% is the 1200 tickets
150 1200
----- = ------------
100 ?
Answer: 12.5%
Step-by-step explanation:
80x 12.5%=10
80+10=90
We have been given image of circle that passes through point . We are asked to find the radius of the circle.
First of all, we will find the center of the circle.
We can see that center of circle is at point .
Now we will use equation of circle to find radius.
, where, point (h,k) represents center of circle and r represents radius of circle.
Now we will substitute the coordinates of point and coordinates of center and solve for r as:
Switch sides:
Now we will take positive square root on both sides:
Therefore, radius of circle will be and center is at point .