Answer:
20 cm
Step-by-step explanation:
Given that :
P = 1/25 r²h
P = price = 240 ; h = height = 15cm
Inputting values into the equation :
240 = 1/25 * r² * 15
25 * 240 = 15r²
6000 = 15r²
6000 / 15 = r²
400 = r²
Square root of both sides
20 = r
Radius = 20cm
Answer:
In the figure below, the areas of rectangles A, B, and C are 12, 24, and 40, respectively. Find the area of rectangle D.
Step-by-step explanation:
here is the picture:
Step-by-step explanation:
![{ ({y}^{2} )}^{4} . \: {( {y}^{3}) }^{2}](https://tex.z-dn.net/?f=%20%7B%20%28%7By%7D%5E%7B2%7D%20%29%7D%5E%7B4%7D%20.%20%5C%3A%20%20%7B%28%20%7By%7D%5E%7B3%7D%29%20%7D%5E%7B2%7D%20)
Since,
![{ ({a}^{x} )}^{y} = {a}^{xy}](https://tex.z-dn.net/?f=%20%7B%20%28%7Ba%7D%5E%7Bx%7D%20%29%7D%5E%7By%7D%20%20%3D%20%20%7Ba%7D%5E%7Bxy%7D%20)
Hence,
![{y}^{2 \times 4} . {y}^{3 \times 2}](https://tex.z-dn.net/?f=%20%7By%7D%5E%7B2%20%5Ctimes%204%7D%20.%20%7By%7D%5E%7B3%20%5Ctimes%202%7D%20)
![= {y}^{8} . {y}^{6}](https://tex.z-dn.net/?f=%20%3D%20%20%7By%7D%5E%7B8%7D%20.%20%7By%7D%5E%7B6%7D%20)
Since,
![{a}^{x} . {a}^{y} = {a}^{x + y}](https://tex.z-dn.net/?f=%20%7Ba%7D%5E%7Bx%7D%20.%20%7Ba%7D%5E%7By%7D%20%20%3D%20%20%7Ba%7D%5E%7Bx%20%2B%20y%7D%20)
Hence,
![= {y}^{8 + 6}](https://tex.z-dn.net/?f=%20%3D%20%20%7By%7D%5E%7B8%20%2B%206%7D%20)
![= {y}^{14} (ans)](https://tex.z-dn.net/?f=%20%3D%20%20%7By%7D%5E%7B14%7D%20%28ans%29)
Hi
Let's convert all of these to decimals.
0.35, 0.8, 0.38, 0.31, 0.425, 32.5
Is 0.35 less than 0.8?
Yes, because 0.8 - 0.35 is a positive number.
Is 0.8 less than 0.38?
No, because 0.38 - 0.8 is a negative number.
Keep using this method to organize all of the numbers.
0.31, 0.35, 0.38, 0.425, 0.8, 32.5
31%, 0.35, 38%, 0.425, 4/5, 32.5
^ the answer
Hope this helps! :)