Answer:
Option C.
Step-by-step explanation:
Number of purple markers = 2
Number of black marker = 1
Number of red markers = 3
Number of yellow markers = 2
Number of blue markers = 2
Total number of markers = 10
Probability to select randomly a red marker = ![\frac{\text{Number of red markers}}{\text{Total number of markers}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BNumber%20of%20red%20markers%7D%7D%7B%5Ctext%7BTotal%20number%20of%20markers%7D%7D)
= ![P(red)=\frac{3}{10}](https://tex.z-dn.net/?f=P%28red%29%3D%5Cfrac%7B3%7D%7B10%7D)
Now we keep with us and randomly select a marker again.
So remaining markers with us = (10 - 1) = 9
Probability of the randomly selected marker to be yellow P(yellow)
= ![\frac{\text{Number of yellow markers}}{\text{Number of remaining markers}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BNumber%20of%20yellow%20markers%7D%7D%7B%5Ctext%7BNumber%20of%20remaining%20markers%7D%7D)
= ![\frac{2}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B9%7D)
Probability of both the events (selecting red AND yellow) = P(red) × P(yellow)
= ![\frac{3}{10}\times \frac{2}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B10%7D%5Ctimes%20%5Cfrac%7B2%7D%7B9%7D)
= ![\frac{6}{90}](https://tex.z-dn.net/?f=%5Cfrac%7B6%7D%7B90%7D)
= ![\frac{1}{15}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B15%7D)
Therefore,Option (C) will be the answer.
Answer:
2x=4-2y
x=(4-2y)/3
4x+5y=10
4[(4-2y)/3]+5y=10
(16-8y)/3+5y=10
(16-8y+15y)=10*3
7y=30-16=14
y=2
Step-by-step explanation:
Isnt the area of the parrallelogram 42?
Answer:
I believe the answer to this question is: 1 x 10^21 equal to 1000000000000000000000.
Answer:
Domain of the function f(x) = cos x : ( - infinity , + infinity)
Step-by-step explanation:
Let the given function f(x) = cos x
We need to find the domain set of the given function f(x) = cos x
Domain is the set of all possible value of x for which the function f(x) is defined.
Now, as the given function f(x) is defined for all the real values of x.
Domain of the function f(x) = cos x : ( - infinity , + infinity)
Hence, Domain : ( -∞ , +∞ )
Also, the graph of the given function f(x) = cos x is attached below :
Now, form the graph also we can see the graph of given function f(x) = cos x can attain all the real values starting from -infinity to +infinity