C& a manufactures treats for dogs. six samples each of five bags of treats were randomly selected and weighed, yielding the following data: bag (lbs) sample 1 2 3 4 5 1 10.2 11.8 10.1 5.9 8.6 2 8.9 11.2 12.4 7.6 5.9 3 10.6 8.8 7.6 11.3 9.9 4 9.6 6.5 12.5 10.4 6.9 5 5.9 8.6 10.3 11.8 10.1 6 12.1 7.3 5.9 10.8 11.1 what would be the control limit of a 3-sigma chart?

c& a manufactures treats for dogs. six samples each of five bags of treats were randomly selected and weighed, yielding

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.