The expected value of the game is the mean value of the game
The expected value of the game is $1
<h3>How to determine the expected value?</h3>
There are 13 spades in a deck of card of 52
So, the probability of selecting a spade is:
P(Spade) = 13/52
Simplify
P(Spade) = 1/4
Winning = $7
The probability of not selecting a spade is:
P(Not spade) = 1 - 1/4
Simplify
P(Not spade) = 3/4
Lose = $1
The expected value of the game is:

This gives

Simplify

Evaluate

Hence, the expected value of the game is $1
Read more about expected values at:
brainly.com/question/15858152
Answer:
- Equilateral Triangle
- Right angle triangle
- Isosceles triangle
Step-by-step explanation:
hope it helps....
This answer to this question is 4
-6 + 2(9a + 5)
-6 + 18a + 10
18a + 4
Hope this helps!
Brainliest is much appreciated!
Answer: x = 9
Step-by-step explanation:
1) Combine multiplied terms into a single fraction
2) Find a common denominator
3) Combine fractions with common denominator
4) Multiply from left to right (PEMDAS)
5) Multiply all terms by the same value to eliminate fraction denominators
6) Cancel multiplied terms that are in the denominator
7) Multiply again
8) Add _ to both sides
9) Divide both sides by the same factor getting 125x/125 = 1125/125
10) Simplify, x = 9