It would be A i hope this helped
Answer:
2 / (x + 1).
Step-by-step explanation:
If the number is represented by x the expression is:
2 / (x + 1).
0.004, 0.003. 0.005, 0.006, 0.007,
4 thousanths, 3 thousanths, 5 thousanths, 6 thousanths, 7 thousanths
4 times (1/1000), 3 times (1/1000) 5 times (1/1000), 6 times (1/1000) 7 times (1/1000)
You can draw a probability tree to work thus out.
First work out the probability for getting 2 whites in a row.
It is the number of whites divided by the overall number of socks so 8/10.
Then, work the probability of doing it for a second time. This is 7/9 since you took away a sock.
Now multiply 8/10 x 7/9 so 56/90.
56/90 is the probability of getting two whites in a row, but you now need to work out the probability of two blacks.
By the same process, you can work out that the calculation is 2/10 x 1/9, so 2/90.
To work out the total probability of two of the same colour, you add the probabilities of 2 whites and 2 blacks, so it is 56/90 + 2/90, so 58/90, which can be simplified to 29/45.
Your final answer is 29/45.
Answer:
1, 3, 9, 27
Step-by-step explanation:
1 times 27 = 27
3 times 9 = 27
9 times 3 = 27
27 times 1 = 27
hope this helps!!!
