Answer:
Option b) ![\frac{17}{260}](https://tex.z-dn.net/?f=%5Cfrac%7B17%7D%7B260%7D)
Step-by-step explanation:
We are given the following information in the question:
Total number of marbles = 65
Number of green marbles = 17
We have to find the probability of drawing 2 green marbles at random without replacement.
Formula:
![Probability = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}](https://tex.z-dn.net/?f=Probability%20%3D%20%5Cdisplaystyle%5Cfrac%7B%5Ctext%7BNumber%20of%20favourable%20outcomes%7D%7D%7B%5Ctext%7BTotal%20number%20of%20outcomes%7D%7D)
![\text{P(Drawing 2 green marbles at random without replacement)} = \\\text{Probability of drawing }1^{st} \text{ green marble}\times \text{Probability of drawing }2^{nd} \text{ green marble}](https://tex.z-dn.net/?f=%5Ctext%7BP%28Drawing%202%20green%20marbles%20at%20random%20without%20replacement%29%7D%20%3D%20%5C%5C%5Ctext%7BProbability%20of%20drawing%20%7D1%5E%7Bst%7D%20%5Ctext%7B%20green%20marble%7D%5Ctimes%20%5Ctext%7BProbability%20of%20drawing%20%7D2%5E%7Bnd%7D%20%5Ctext%7B%20green%20marble%7D)
![\text{Probability of drawing }1^{st} \text{ green marble} = \displaystyle\frac{17}{65}\\\\\text{Probability of drawing }2^{nd} \text{ green marble} = \displaystyle\frac{16}{64}](https://tex.z-dn.net/?f=%5Ctext%7BProbability%20of%20drawing%20%7D1%5E%7Bst%7D%20%5Ctext%7B%20green%20marble%7D%20%3D%20%5Cdisplaystyle%5Cfrac%7B17%7D%7B65%7D%5C%5C%5C%5C%5Ctext%7BProbability%20of%20drawing%20%7D2%5E%7Bnd%7D%20%5Ctext%7B%20green%20marble%7D%20%3D%20%5Cdisplaystyle%5Cfrac%7B16%7D%7B64%7D)
![\text{P(Drawing 2 green marbles at random without replacement)} =\displaystyle\frac{17}{65}\times \frac{16}{64}=\frac{17}{260}](https://tex.z-dn.net/?f=%5Ctext%7BP%28Drawing%202%20green%20marbles%20at%20random%20without%20replacement%29%7D%20%3D%5Cdisplaystyle%5Cfrac%7B17%7D%7B65%7D%5Ctimes%20%5Cfrac%7B16%7D%7B64%7D%3D%5Cfrac%7B17%7D%7B260%7D)
Option b) ![\frac{17}{260}](https://tex.z-dn.net/?f=%5Cfrac%7B17%7D%7B260%7D)
Answer:
The correct option is B. two oxygen atoms
Step-by-step explanation:
The molecular formula for carbon dioxide is given by :
![CO_2](https://tex.z-dn.net/?f=CO_2)
Here, the alphabet C stands for Carbon and the alphabet O stands for Oxygen.
And the prefixes of each of these words represents the number of atoms present of the corresponding element in one molecule of carbon dioxide.
So, The prefix of the first word that is C is 1
⇒ One molecule of carbon dioxide contains one atom of Carbon.
The prefix of the second word that is O is 2
⇒ One molecule of carbon dioxide contains 2 atoms of Oxygen.
Therefore, The correct option is B. two oxygen atoms
X is 4 y is zero. So he can do four math assignments if this doesn't include breaks.
Answer: x = -3
Step-by-step explanation:
2x + 7x = 9x
9x + 3 -24
- 3
9x = -27
divide by 9
-3 = x
A) Similar
Proven by AA postulate
By vertical angles <BCA = <DCE
and by alternate interior angles <B = <D