Answer:
The length of rectangular panel is 6.4 cm.
Step-by-step explanation:
We are given the following information in the question:
Area of rectangular solar panel = 128 square cm
Width of panel = 20 cm
We have to find the length of the panel
Formula:

Hence, the length of rectangular panel is 6.4 cm.
This is an example of direct variation as greater would be length and breadth, the greater would be the area.
Answer:
Graph attached.
Step-by-step explanation:
y >
x + 3
When x = 0 , y = 3
When y = 0 , x = -4.5
Graphing the two points (0, 3) and (-4.5, 0) gives the graph attached below:
The shaded part is the wanted region.
Answer:
Therefore the Perimeter of the room is 94 ft.
Step-by-step explanation:
Given:

Where ,
P = Perimeter
l = Length = 26 ft
w = Width = 21 ft
To Find:
Perimeter of the room = ?
Solution:
Perimeter of Rectangle is given as

Substituting 'l' and 'w' we get


Therefore the Perimeter of the room is 94 ft.