Answer:
Step-by-step explanation:
It is given that circle is a tangent to y axis, which tells us that the distance between the centre point and y axis is the radius of the triangle.
Formula for equation of circle with centre (x1,y1) and radius r is
In the given case distance between the centre and y axis is 7 units so radius would be 7 and the centre point is (-7,2),
the equation of circle is ,
Hence the abow equation is the circle equation.
Let initial price be = x = 3.24
final price = y = 4.05
Difference = 4.05 - 3.24
= 0.81
Percentage increase = 0.81 / 3.25 × 100
= 25 %
So to find a percent of increase you have to put the current number minus previous number(in this case 20-16) over the previous number(16 in this case) and multiply by 100.
So we have 20-16/16 multiplied by 100.
Since 4/16= 0.25,multiplying It by 100 gives you 25.
So the answer is 25%
Ummm we are allll gonna be dead cause Biden be da president