1 metre is 100 cm....so 900 cm....B
Answer:
89.396668... is a rational number
Answer:
1770
Step-by-step explanation:
No calculator is needed.
When you fill in the numbers, you get ...
1 = (x/1770)^(-0.8)
The only way the value will be 1 is if the fraction is 1:
x/1770 = 1
The only way the fraction will be 1 is x = 1770.
1770 mg Zn ions per liter will be lethal in 1 minute.
_____
<em>Check</em>
You know the answer will be slightly more than 1743 from your answer to the second part of the first question.
<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)
Answer:
519
Step-by-step explanation:
We know the admission for adults is $22, and the kids ticket is 5 less.
22 - 5 = 17
now we know the kids ticket is $17
12 adult tickets - 22 x 12 = 264
15 children - 15 x 17 = 255
264 + 255 = 519