How many solutions does the system of equations below have? y=2x+5 y=2x+5
1 answer:
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Answer:
Step-by-step explanation:
<em>(look at the picture)</em>
We have:
two halves of circle (whole circle) with radius r = 7m;
the suqare wih length side a = 14m;
the triangle with base b = 14m and hight h = 3.9m.
The formula of an area of a circle:
Substitute:
The formula of an area of a square:
Substitute:
The formula of an area of a triangle:
Substitute:
The area of a figure:
