Answer:
40%.
Step-by-step explanation:
Prob( Rolling a 4) = 12/50
Prob( Rolling a 3) = 8/50
When the combined probabilities contain an 'OR' we Add the probability values:
Probability of a 3 or a 4
= 12/50 + 8/50
= 20/50
= 2/5
= 40%.
it might be quantity btw I love your pfp
I don't get it, answer what???
Answer:
40%
Step-by-step explanation:
In order to find percent, you can set up the fraction 2/5 to the equation x/100.
![\frac{2}{5}=\frac{x}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5%7D%3D%5Cfrac%7Bx%7D%7B100%7D)
Then solve using algebra to cross-multiply.
![(2*100)=(x*5)](https://tex.z-dn.net/?f=%282%2A100%29%3D%28x%2A5%29)
![200 = 5x](https://tex.z-dn.net/?f=200%20%3D%205x)
![x = \frac{200}{5} = 40](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B200%7D%7B5%7D%20%3D%2040)
so the answer is 40%.
Answer:
![v=364.5\ m^3](https://tex.z-dn.net/?f=v%3D364.5%5C%20m%5E3)
Step-by-step explanation:
<u>Volume Of A Regular Solid</u>
When a solid has a constant cross-section, the volume can be found by multiplying the area of the base by the height. The area of a trapezium is
![\displaystyle A_t=\frac{b_1+b_2}{2}h](https://tex.z-dn.net/?f=%5Cdisplaystyle%20A_t%3D%5Cfrac%7Bb_1%2Bb_2%7D%7B2%7Dh)
where
and
are the lengths of the parallel sides and h the distance between them.
The figure shows a solid with a trapezoid as the constant cross-section and a height x. The volume of the solid is
![\displaystyle v=A_t\ x](https://tex.z-dn.net/?f=%5Cdisplaystyle%20v%3DA_t%5C%20x)
![\displaystyle v=\frac{b_1+b_2}{2}\ h\ x](https://tex.z-dn.net/?f=%5Cdisplaystyle%20v%3D%5Cfrac%7Bb_1%2Bb_2%7D%7B2%7D%5C%20h%5C%20x)
The image doesn't explicitly say if the length of 4.5 is the height of the trapezium or the length of that side. We'll assume the first, so our data is:
![\displaystyle b_1=7m,\ b_2=11m,\ h=4.5m,\ x=9m](https://tex.z-dn.net/?f=%5Cdisplaystyle%20b_1%3D7m%2C%5C%20b_2%3D11m%2C%5C%20h%3D4.5m%2C%5C%20x%3D9m)
We now compute the volume
![\displaystyle v=\frac{7+11}{2}.(4.5)(9)=364.5](https://tex.z-dn.net/?f=%5Cdisplaystyle%20v%3D%5Cfrac%7B7%2B11%7D%7B2%7D.%284.5%29%289%29%3D364.5)
![\boxed{\displaystyle v=364.5\ m^3}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cdisplaystyle%20v%3D364.5%5C%20m%5E3%7D)