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dsp73
3 years ago
7

Can someone explain this to me please will give brainliest

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
3 0
The answer is A. for this, you have to set up a system of equations. the first one will be the area equation. since you know area=length x width, your equation will be LxW=50. the next equation is L=2W, since the length is two times the width. then, plug in 2W for the L in the other equation and you get 2W^2=50. divide by 2 and get W^2=25. square root both sides and you get W=5. plug back into the other equation to find L=10. Then, add the sides of the rectangle for the perimeter. 10+5+10+5=30.
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A piece-wise function combines more than one functions of different input values.

<em>The value of f(-1) is -3</em>

From the graph, we have the following observations

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Notice that there is a closed circle at the point where x = -1 and y = -3.

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See attachment for the graph of the piece-wise functions

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