Answer:
use the app socratic it’s step by step .
Step-by-step explanation:
Answer:
No, it is not fair
Step-by-step explanation:
Here, we want to check if this is a fair game
To win a sum, a duck with a green star on the underside must be selected
The number of ducks with this is 4 out of 75
The probability of selecting one is 4/75
The expected value of selecting is ;
4/75 * 10 = 0.5333
The cost of selecting a duck is $1
The probability that a duck that wins will not be selected is 71/75 which at a price of $1 is 0.9467
Since the price to lose and the amount to win is not the same, then the game is not fair
(x+1)(2x+1)(x-2)
= (2x+1)(x+1)(x-2)
= (2x+1)(x² -x - 2)
= 2x³ - 2x² - 4x + x^2 - x - 2
= 2x³ - x² - 5x - 2
Answer: 2x³ - x² - 5x - 2
Answer:
45%
Step-by-step explanation:
Running speed= 9mph
Biking speed= 20mph
9/20=45%