Answer:
<h2>3,600 m²</h2>
Step-by-step explanation:
The formula of a surface area of a sphere:
![SA=4\pi R^2](https://tex.z-dn.net/?f=SA%3D4%5Cpi%20R%5E2)
<em>R</em><em> - radius</em>
<em />
We have <em>R = 30m</em>.
Substitute:
![SA=4\pi(30^2)=4\pi(900)=3600\pi\ m^2](https://tex.z-dn.net/?f=SA%3D4%5Cpi%2830%5E2%29%3D4%5Cpi%28900%29%3D3600%5Cpi%5C%20m%5E2)
If 11.25 inches snow fell in 4.5hrs,
Then for each hr how much snow fell?
So,
4.5 : 11.25
To find how many inches that fell per hour who would need to divide the number of inches by the numbers of hours
11.25 divided by 4.5 = 2.5
So the answer would be 2.5 inch was of snow per hour
Answer:
262.12mph and 419kph
Step-by-step explanation:
Given: It takes 4 hours and 15 minutes to fly from Orlando, Florida, to Boston, Massachusetts. The distance between the two cities is 1114 miles
To Find: the average speend of the plane in miles per hour, If every mile is approximately 1.6 kilometers, the speed of the airplane in kilometers per hour
Solution:
Distance between Orlando,Florida and Boston, Massachusetts
![\text{miles}](https://tex.z-dn.net/?f=%5Ctext%7Bmiles%7D)
Time taken to cover the distance
and ![15\text{minutes}](https://tex.z-dn.net/?f=15%5Ctext%7Bminutes%7D)
We know that,
![\text{Average Speed}=\frac{\text{Total Distance}}{\text{Total time}}](https://tex.z-dn.net/?f=%5Ctext%7BAverage%20Speed%7D%3D%5Cfrac%7B%5Ctext%7BTotal%20Distance%7D%7D%7B%5Ctext%7BTotal%20time%7D%7D)
![=\frac{1114}{\frac{17}{4}}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1114%7D%7B%5Cfrac%7B17%7D%7B4%7D%7D)
![=\frac{1114\times4}{17}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1114%5Ctimes4%7D%7B17%7D)
![\text{mph}](https://tex.z-dn.net/?f=%5Ctext%7Bmph%7D)
It is given that,
![1\text{mile}=1.6\text{kilometer}](https://tex.z-dn.net/?f=1%5Ctext%7Bmile%7D%3D1.6%5Ctext%7Bkilometer%7D)
therefore,
![1\text{mph}=1.6\text{kph}](https://tex.z-dn.net/?f=1%5Ctext%7Bmph%7D%3D1.6%5Ctext%7Bkph%7D)
Speed Of plane in Kilometers per hours ![=\text{speed in mph}\times1.6](https://tex.z-dn.net/?f=%3D%5Ctext%7Bspeed%20in%20mph%7D%5Ctimes1.6)
![419.4\text{kph}](https://tex.z-dn.net/?f=419.4%5Ctext%7Bkph%7D)
Speed of in miles per hour is
and Speed in kilometer per hour ![419.4\text{kph}](https://tex.z-dn.net/?f=419.4%5Ctext%7Bkph%7D)