Help! Please I beg you guyss //Greg ran a race that was 3.825 kilometers long. If kilometer is equal to about 0.25 mile, how many miles was the race?

i think it’s A- 15.3

Step-by-step explanation:

I think you do 3.825/0.25=15.3 but i could be wrong

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.