Josiah and elena are planning to start running together a couple days per week. in order to estimate how far they could run together in a certain amount of time, they each timed a 1/2 mile solo run. josiah ran the 1/2 in 5 minutes, 30 seconds, while elena ran 1/2 in 5 minutes. what is the unit rate for each runner?

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.

found it xd it ok yt

its a straight line parallel to the time axis