Which of the following describes a simple event?

Option B

Step-by-step explanation:

Simple event is an event where all the possible outcomes have the same probability.

Are the type of events that we can write as:

P = number of a given outcome/total posible outcomes.

Here we have 3 combined options (A, C and D) that, while in parts can be described in that way, not as whole events.

The correct option is B, where the probability of getting a given number in a dice is the number of times that the number repeats (1) divided the total number of options (6), P =  1/6 for all the numbers, so this is a simple event.

3

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.