Which survey question is biased?

a. which is your favorite, pizza or spaghetti?

b. which subject is your favorite, math, which is easy, or english, which is difficult?

c. who do you live with: both parents, mother only, father only, or another guardian?

d. should children be allowed to stay up as late as they would like?

Probably D

Step-by-step explanation:

For A, B, and C, it does not seem like the asker is forcing the answerer to say a certain choice.

But, for D, this question is probably looking for a wanted answer, whoever is asking (a student may look the "yes", an adult may look for "no")

Honestly, it depends on the setting: if a math teacher asks B, or someone trying to prove that nuclear families are superior asks C, there is bias.

c.

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)