Mr. parker drive 143 miles in 3.5 hours. At the rate, how far would he travel in 5 hours?

204 miles

Step-by-step explanation:

All I did was divide 143 by 3.5 and got 40.85(I rounded it), then I multiplied 40.85 by 5 and got 204 (I also rounded that if it doesn't need to be rounded then the real answer would be 204.25)

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.