54.8. Hope that helped :)
F(5) = 2(5)^2 - 10
f(5) = 2(25) - 10
f(5) = 50 - 10
f(5) = 40
4000
-1375
———
Take 1 from the number 4 and have it go down the line of zeros.
39910
-1375
———-
Subtract
39910
-1375
———-
2,625
I hope this helped!
Answer:
-3.25 Didn't see the whole paper so correct me if I'm wrong.
Step-by-step explanation:
−2.5+0.25+−1.25+−1.5
+1.25+0.5=-3.25
Answer: 0.02257
Step-by-step explanation:
Given : Total cards in a deck = 52
Number of ways to select any 5 cards : 
Since , there are total 13 kinds of card (includes Numbers from 2 to 9 and Ace , king, queen and jack).
Of each kind , there are 4 cards.
Number of ways to select three cards in a five card hand of a single kind : 
Number of ways to select three cards in a five card hand of a exactly three of a kind : 
Now , the required probability = 


∴ The probability of being dealt exactly three of a kind (like three kings or three 7’s, etc.) in a five card hand from a deck of 52 cards= 0.02257