What is the equation of the circle with center (3.2,-2.1) and radius 4.3?

 The required equation of the circle is

Step-by-step explanation:  We are given to find the equation of the circle with center (3.2,-2.1) and radius 4.3.

We know that

the STANDARD equation of a circle with center (h, k) and radius r units is given by

For the given circle,

center, (h, k) = (3.2, -2.1)  and radius, r = 4.3 units.

So, from equation (i), we get

Thus, the required equation of the circle is

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180