Answer:
![Area = 968000cm^2](https://tex.z-dn.net/?f=Area%20%3D%20968000cm%5E2)
Step-by-step explanation:
To be able to answer this question properly. I'll assume the length of the room is in meters.
So for the room, we have:
![Length = 12.8m](https://tex.z-dn.net/?f=Length%20%3D%2012.8m)
![Breadth = 850cm](https://tex.z-dn.net/?f=Breadth%20%3D%20850cm)
For the bed, we have:
![Length = 300cm](https://tex.z-dn.net/?f=Length%20%3D%20300cm)
![Breadth = 400cm](https://tex.z-dn.net/?f=Breadth%20%3D%20400cm)
First, we calculate the surface area of the room.
![A_1 = 12.8m * 850cm](https://tex.z-dn.net/?f=A_1%20%3D%2012.8m%20%2A%20850cm)
Convert all units to cm
![A_1= 12.8*100cm * 850cm](https://tex.z-dn.net/?f=A_1%3D%2012.8%2A100cm%20%2A%20850cm)
![A_1= 1 088 000 cm^2](https://tex.z-dn.net/?f=A_1%3D%201%20088%20000%20cm%5E2)
Next, we calculate the area of the bed
![A_2 = 300cm * 400cm](https://tex.z-dn.net/?f=A_2%20%3D%20300cm%20%2A%20400cm)
![A_2 = 120000cm^2](https://tex.z-dn.net/?f=A_2%20%3D%20120000cm%5E2)
The area of the space left is the difference between A1 and A2
![Area = A_1 - A_2](https://tex.z-dn.net/?f=Area%20%3D%20A_1%20-%20A_2)
![Area = 1088000cm^2 - 120000cm^2](https://tex.z-dn.net/?f=Area%20%3D%201088000cm%5E2%20-%20120000cm%5E2)
![Area = 968000cm^2](https://tex.z-dn.net/?f=Area%20%3D%20968000cm%5E2)
To find the area of a triangle, it it (width x height)/2 so plug in the numbers
(6x6)/2
36/2
18
then you multiply that by 4, because there are 4 triangles
18x4=72
then take the area of the square
6x6=36
then add them!
area=72+36
The area is 108!
If we have in mind that tanx = sinx / cosxso we can rightly say that sinx=tanx×cosx
If you place the data in the right places, the answer should be 0.1672
I hope this can help you greatly
Answer:
A=-2 B=17
Step-by-step explanation:
Answer:
The simple interest is 10,150.00 The compound interest is $10,150.56
Step-by-step explanation: