Determine the type of quadrilateral shown below
2 answers:
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Answer:
Total cost to paint the room = £73.51
Step-by-step explanation:
Given:
Dimensions of the room = 6.8 m 9.2 m
Cost of tin of paint = £11.75
A tin of paint covers an area = 20
To find the cost of painting the room with two coats of paint.
Solution:
Area of the room =
We will use unitary method to find the amount of paint required for the room.
If of area is covered by 1 tin of paint.
For of area, amount of paint required =
of a tin
Then, for amount of paint required =
tins of paint.
<em>For double coats twice paint must be required.</em>
So, total amount of paint required for painting the room with two coats of paint = tins of paints.
Using unitary method to find total cost.
If 1 tin of paint costs = £11.75
<em>6.256 tins of paint will cost = </em>
Total cost to paint the room = £73.51
For this case we have the following inequality:
It is observed that inequality does not include equality, so we will have a dotted line at the border of the graph.
The slope of the line is given by
It is noted that the shaded area is above the line.
We also observe in the graph that point (0,0) belongs to it.
Finally, it is observed that the intersection with the y-axis is -2. That is: (0, -2)
Answer:
The correct options are: B, D, E
See attached image
