9. Determine if the following situations suggest a random variable with a binomial distribution. Justify your answer. a) The number of questions correct if a student randomly guesses on a quiz of 20 multiple choice questions where each question has 4 possible answers. b) The number of people with blue eyes in a group of 10 people drawn from a room of 30 people without replacement. c) The number of bird chirps one can hear in a day if the average number of chirps per hour is 15. d) The number of heads scored in 30 flips of a coin e) The number of rolls of two dice that result in a prime number total if the dice are rolled 50 times.

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

answer: h

step-by-step explanation:

step-by-step explanation: