The equation for volume of a sphere is (4/3)(pi)(r)^3. So you would plug in he radius 9 into the equation. It would simplify to equal (4/3)(pi)(729). It simplifies further to equal (972)(pi)
Answer: 10⁻⁸°⁹
<u>Step-by-step explanation:</u>
![pH=log\bigg(\dfrac{1}{[H^+]}\bigg)\\\\\text{use log expansion rules to get:}\\pH=log\ 1-log\ [H^+]\\\\8.9=0\ -\ log\ [H^+]\\\\8.9=-log\ [H^+]\\\\-8.9=log\ [H^+]\\\\\text{use log transformation rules to get the following exponential equation:}\\10^{-8.9}=[H^+]](https://tex.z-dn.net/?f=pH%3Dlog%5Cbigg%28%5Cdfrac%7B1%7D%7B%5BH%5E%2B%5D%7D%5Cbigg%29%5C%5C%5C%5C%5Ctext%7Buse%20log%20expansion%20rules%20to%20get%3A%7D%5C%5CpH%3Dlog%5C%201-log%5C%20%5BH%5E%2B%5D%5C%5C%5C%5C8.9%3D0%5C%20-%5C%20log%5C%20%5BH%5E%2B%5D%5C%5C%5C%5C8.9%3D-log%5C%20%5BH%5E%2B%5D%5C%5C%5C%5C-8.9%3Dlog%5C%20%5BH%5E%2B%5D%5C%5C%5C%5C%5Ctext%7Buse%20log%20transformation%20rules%20to%20get%20the%20following%20exponential%20equation%3A%7D%5C%5C10%5E%7B-8.9%7D%3D%5BH%5E%2B%5D)
I think it’s 36, Are there options??
So if a number is 5 or greater you round up but if the number is 4 or less you round down so the number 6 is above five so you would round the 6 to 10 therefore making it 7.8 instead of 7.76
Answer:
0.20 = 1/5 or 20%
0.30 = 3/10 or 30%
