Answer:
1/3πr^2(1 - 2r).
Step-by-step explanation:
The Greatest Common Factor of the 2 terms is 1/3πr^2
So taking this out we get the factors:-
1/3πr^2(1 - 2r).
¿Cuál sería el número subrayado?
Total marbles in the bag = 15
Red marbles in the bag = 5
Probability of picking a red marble the first time = 5/15 .
If you put it back, then everything goes back to the beginning.
Probability of picking a red marble the second time = 5/15 .
If you put it back, then everything goes back to the beginning.
Probability of picking a red marble the third time = 5/15 .
If you put it back, then everything goes back to the beginning.
Probability of picking a red marble the fourth time = 5/15 .
If you put it back, then everything goes back to the beginning.
.
.
.
Probability of picking a red marble the 20th time = 5/15 .
If you put it back, then everything goes back to the beginning.
.
.
.
Probability of picking a red marble the ' Nth ' time = 5/15 .
If you put it back, then everything goes back to the beginning.
Probability of picking a red marble ' N ' times in a row = (5/15)^N.
Probability of picking a red marble 3 times in a row = (5/15) (5/15) (5/15).
Probability of picking a red marble 2 times in a row = (5/15) x (5/15)
= (25/225) = 1/9
= 11.1% (rounded).
Answer:
can u show the screen of the problem i dont understand ^
Step-by-step explanation: