When you write the equation of a circle in the form

Then the center of the circle has coordinates
and the radius is 
So, in your case, the center of the circle is 
The answer to that question is D
Answer: The price of the shirt becomes 14.4 after using the 20% off coupon. Why?
Step-by-step explanation:
Multiply the number by the percent ( 18* 20 = 360)
Divide the answer by 100 (e.g. 360/100 = 3.6)
18.00 - 3.6 = 14.4
Answer:
x=4
Step-by-step explanation:
the axis of symmetry always divides a parabola into two even parts from the vertex.
Find the value of the vertex (4,7)
since you need a vertical line to split a parabola, the equation is (x = )
Use the x value of the vertex (4)
x=4