What is the length of a radius of a circle with a diameter of 25 in ?

radius: 12.5

Step-by-step explanation:

the radius is half the diameter so just divide by 2

12.5 in

Step-by-step explanation:

The radius of a circle is half of the diameter of the circle so 25/2 eqials 12.5

were is the equation

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.