The 128 employees of a company volunteer 12480 hours in 26 weeks. on average, how many hours do they all volunteer per week. on average, how many hours does each employee vontueer per week

480 hours of volunteering was done by 128 employees in a 1 week.

3.75 hours of volunteering was done by each employee per week

Step-by-step explanation:

Number of employees volunteer in 12480 hours = 128

Number of weeks of volunteered by 128 employees = 26 weeks

Number of hours of volunteered by 128 employees =  12480 hours

12480 hours of volunteering was done by 128 employees in 26 weeks:

Volunteering done by 128 employees hour per week :

128 employees volunteered = 480 hours/week

480 hours of volunteering was done by 128 employees in a 1 week.

Then 1 employee volunteered is:

3.75 hours of volunteering was done by each employee per week

25

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.