Aresearch study investigated differences between male and female students. based on the study results, we can assume the population mean and standard deviation for the gpa of male students are µ = 3.5 and σ = 0.5. suppose a random sample of 100 male students is selected and the gpa for each student is calculated. what is μx⎯⎯ μ x ¯ ?

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.

step-by-step explanation:

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