Of the last 60 people who went to the cash register at a department store, 14 had blond hair, 16 had black hair, 27 had brown hair, and 3 had red hair. determine the empirical probability that the next person to come to the cash register has blond hair.

The empirical probability is 7/30

Step-by-step explanation:

60 people

14 blondes

14/60= 7/30

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.