For which type of study is it most appropriate to use a random sample?

A) To gather information about a demographic in a small, closed environment, such as a classroom.
B) To gather information about a large population.
C) To gather information about a small population.
D) When the researcher believes certain subjects are a better fit for the study than others.

no because mercury has a density of 13.6 grams per centimeter squared while gold has 19.32 grams centimeter squared

step-by-step explanation:

363 square inches

step-by-step explanation:

surface area of a pyramid is b + 1/2ph

b is the area of the base: 11 x 11 = 121

p is the perimeter of the base: 11 + 11 + 11 + 11 = 44

h is the height of the pyramid: 11

121 + 1/2(44)(11)

121 + 242

363