3.14 is it shortened but it’s an infinite decimal
Here is your answer:
Since their no zeros (0) here's your answer:
6.174798604×10^9
<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>
False. A research paper is based on facts, that's why you have to do research on it. If it was all your own thoughts, you could just write down whatever.
Answer:
ft³
Step-by-step explanation:
First, let's figure out how to get the <em>volume </em>of a sphere from its <em>surface area</em>. If r is the radius of our sphere, then
The formula for a sphere's surface area is
The formula for a sphere's volume is ![V=\frac{4}{3}\pi r^3](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E3)
So to get from area to volume, we have to <em>divide the area by 3 </em>and then <em>multiply it by r.</em> Mathematically:
![V=\frac{A}{3}r](https://tex.z-dn.net/?f=V%3D%5Cfrac%7BA%7D%7B3%7Dr)
Before we solve for V though, we need to find the radius of our sphere. Thankfully, we're given the surface area -
ft² - so we can use the area formula to find that radius:
![A=4\pi r^2=400\pi\\r^2=100\\r=10](https://tex.z-dn.net/?f=A%3D4%5Cpi%20r%5E2%3D400%5Cpi%5C%5Cr%5E2%3D100%5C%5Cr%3D10)
And now that we have our radius, we can put it into our volume formula to find
ft³