You plan to survey people to see what percent own their home and what percent rent. Which survey is most likely to give you a random sample?

You mail a survey to every 20th person in the telephone book.

You mail a survey to every 10th address from a list of retirement community addresses.

You interview people outside a pool supply store in the suburbs.

You interview people in the street near an apartment complex.

You mail a survey to every 10th address from a list of retirement community addresses.

Step-by-step explanation:

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i