Answer: The value of x is 6.
Step-by-step explanation:
In the figure we have two secants.
A secant is a line that intersects a circle in exactly two points.
For the figure attached below:
![a\times b=c\times d](https://tex.z-dn.net/?f=a%5Ctimes%20b%3Dc%5Ctimes%20d)
So for the given figure,
![x\times 8=4\times (4+8)\\\\\Rightarrow\ x=\dfrac{4\times12}{8}\\\\\Rightarrow\ x=6](https://tex.z-dn.net/?f=x%5Ctimes%208%3D4%5Ctimes%20%284%2B8%29%5C%5C%5C%5C%5CRightarrow%5C%20x%3D%5Cdfrac%7B4%5Ctimes12%7D%7B8%7D%5C%5C%5C%5C%5CRightarrow%5C%20x%3D6)
Hence, The value of x is 6.
8×$4= $32
36×$2=$72
$32+$72=$104
Jonah recievied $104 from the bake sale.
<span>The formula for calculating the cone volume is:
</span>
![V = \frac{ \pi *r^2* h}{3}](https://tex.z-dn.net/?f=V%20%3D%20%20%5Cfrac%7B%20%20%5Cpi%20%2Ar%5E2%2A%20h%7D%7B3%7D%20)
<span>
Data:
h (height) = 12 in
r (radius) = 9 in
Use: </span>
![\pi \approx 3.14](https://tex.z-dn.net/?f=%20%5Cpi%20%5Capprox%203.14)
Solving:
![V = \frac{ \pi *r^2* h}{3}](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B%20%5Cpi%20%2Ar%5E2%2A%20h%7D%7B3%7D%20)
![V = \frac{ 3.14 *9^2* 12}{3}](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B%203.14%20%2A9%5E2%2A%2012%7D%7B3%7D%20)
![V = \frac{ 3.14 *81* 12}{3}](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B%203.14%20%2A81%2A%2012%7D%7B3%7D%20)
![V = \frac{3,052.08}{3}](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B3%2C052.08%7D%7B3%7D)
The answer would be 39/250000