Kate jogged for 37 minutes, 23 seconds, and Phil jogged for 23 minutes, and 43 seconds. (a) How much longer did Kate jog than
Phil? (b) What was the combined jogging time for the two?
(1 min. = 60 sec.)

a. 13 min, 40 sec

b. 81 min, 6 sec

Step-by-step explanation:

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.