4 The net below shows four equilateral
triangles.
8 ft
12 ft
+
What is the total surface area of the
triangular pyramid in square feet?
A 144
B
192 ft
C 258 ft
D 384 Ft

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e. g. 98.765).

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Steve had 48 chocolates but he decided to give 8 chocolats to each of his f coworkers. how many chocolates does steve have left