Are these random sample?

The first 50 names in the telephone directory

12 jurors choosing through examination by opposing lawyers

What has a product of 0.54?

The area of a rectangular rug is given by the trinomial r^2 - 8r - 33. What are the possible dimensions of the rug? Use factoring.

What is 250 divided by 5.86

What is the area of a circle with a radius of 12 inches? Use = 3.14.

Simplify 6x+9/15x^2 divided by 16x-12/10^4

Brine's kitchen has an area of 81 square feet. the kitchen is 9 times as many square feet as brine's pantry. if the pantry is 3 feet wide, what is the length of the pantry?

What is a list of number in a specific order called

Tia lives at the corner of 4th street and 8th avenue. lei lives at the corner of 12th street and 20th avenue. the fruit market is the distance from tia's home to lei's home.

A circle has a diameter of 42 mm. What is the circumference of this circle? (use 22/7 for pi; show your work in numbers)

A cosine function has a period of 5, a maximum value of 20, and a minimum value of 0. The function is not a reflection of its parent function over the x-axis.