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:
B. x ~ 5
This is a right isosceles triangle
Ac method
for
ax^2+bx+c
multiply a and c together
find what 2 numbers multiply to get ac and add to get b
split b up
gropu
factor
3x^2+7x+2
2 times 3=6
what 2 numbers multily to get 6 and ad to get 7
6 and 1
3x^2+6x+1x+2
(3x^2+6x)+(1x+2)
3x(x+2)+1(x+2)
(3x+1)(x+2) is factored
Answer:
width : 2m²
perimeter: 20m
Step-by-step explanation:
area = length x width
16m² = 8m x ![x\\](https://tex.z-dn.net/?f=x%5C%5C)
= ![x](https://tex.z-dn.net/?f=x)
![x = 2](https://tex.z-dn.net/?f=x%20%3D%202)
width = 2m
perimeter = length + length + width + width
perimeter = 8 + 8 + 2+ 2
perimeter = 20m
If the baseball pitcher won 80% of the games he pitched and he pitched 35 ballgames, and you would like to know how many games did he win, you can calculate this using the following steps:
80% of 35 = 80% * 35 = 80/100 *35 = 28 games
Result: The baseball pitcher won 28 games.