An employee at an automobile factory wants to know the true diameter of car rotors for a specific make and model of car. (Assume that the rotors are normally distributed.) Taking a sample of 10 rotors, the mean of the rotors is 22.3 inches. a) If it is known that the population standard deviation of these rotors is .2 inches, find a 98% confidence interval for the true diameter of the rotors

answer: the correct answer is -32

step-by-step explanation:

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

i believe it is b and c. (side note, i got the same computer from k-12 lol i’m in 8th grade and this is my first year, will it get

step-by-step explanation: