Answer:
27
Step-by-step explanation:
18
1/a^3
The guy above me is probably also right
From the information below the games is over in 3 sets. For Gina to win the match there are 3 possibilities.
1) Gina wins the first 2 sets with probability ![(\frac{2}{5} )^2](https://tex.z-dn.net/?f=%20%28%5Cfrac%7B2%7D%7B5%7D%20%29%5E2%20)
2)Gina wins the first set. Looses the next set. Wins the third set. ![(\frac{2}{5} ) (\frac{3}{5} ) (\frac{2}{5} )](https://tex.z-dn.net/?f=%20%20%28%5Cfrac%7B2%7D%7B5%7D%20%29%20%28%5Cfrac%7B3%7D%7B5%7D%20%29%20%28%5Cfrac%7B2%7D%7B5%7D%20%29%20)
3)Gina looses the first set. Wins the next 2 sets. ![(\frac{3}{5} ) (\frac{2}{5} ) (\frac{2}{5} )](https://tex.z-dn.net/?f=%20%20%28%5Cfrac%7B3%7D%7B5%7D%20%29%20%28%5Cfrac%7B2%7D%7B5%7D%20%29%20%28%5Cfrac%7B2%7D%7B5%7D%20%29%20)
The required probability that Gina wins is the sum of the above 3 probabilities . That is the probability that Gina wins the match is
![(\frac{2}{5} )^2 +(\frac{2}{5} )^2(\frac{3}{5} ) +(\frac{2}{5} )^2 (\frac{3}{5} )=\frac{4}{25} +\frac{12}{125} +\frac{12}{125} =\frac{44}{125}](https://tex.z-dn.net/?f=%20%28%5Cfrac%7B2%7D%7B5%7D%20%29%5E2%20%2B%28%5Cfrac%7B2%7D%7B5%7D%20%29%5E2%28%5Cfrac%7B3%7D%7B5%7D%20%29%20%2B%28%5Cfrac%7B2%7D%7B5%7D%20%29%5E2%20%28%5Cfrac%7B3%7D%7B5%7D%20%29%3D%5Cfrac%7B4%7D%7B25%7D%20%2B%5Cfrac%7B12%7D%7B125%7D%20%2B%5Cfrac%7B12%7D%7B125%7D%20%3D%5Cfrac%7B44%7D%7B125%7D%20%20)
Answer:
Current points on Ken's card = 58
Step-by-step explanation:
Given:
Reward card points to be earned in order to be offered a free smoothie =75
Ken is in need of 17 more points to win a free smoothie.
∴ The current points on Ken's card must be = ![75-17= 58](https://tex.z-dn.net/?f=75-17%3D%2058)
Answer:
His answer differ by 675
Step-by-step explanation:
25*36=900
25*63=1575
1575-900=675