Find the diameter of circle Z if the center has coordinates (0, 2) and a point on the circle is (3,4).

Diameter of the circle = 2√13

Step-by-step explanation:

The radius is calculated by using the formula for calculating the distance between the two points as shown;

R = √(y2-y1)²+(x2-x1)²

Given the coordinates (0, 2) and (3,4)

R = √4-2)²+(3-0)²

R = √2²+3²

R = √4+9

R = √13

Diameter = 2R

Diameter of the circle = 2√13

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8