Answer:
Step-by-step explanation:
Area = 3.14r^2
Area = 3.14(5)^2
Area = 3.14(25)
Area = 78.5
A positive plus a negative will equal a negative #.
1+-2= -1
Y=2x
so what you do is sub 2x for y in the top equation
x^2+(2x)^2=5
x^2+4x^2=5
5x^2=5
divide both sides by 5
x^2=1
sqrt both sides
x=1 or -1
sub back
y=2x
y=2(-1)
y=-2
y=2(1)
y=2
the solutions are (1,2) and (-1,-2)
To solve this problem you must apply the proccedure shown below:
1. The formula for calculate the perimeter of a rectangle is:

Where
is the length and
is the width.
2. The length is
more than the width, therefore:

3. Substitute values into the formula for calculate the perimeter and solve for the width:

3. Then, the length is:

The answer is: The length is
and the width is 
Answer:
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Step-by-step explanation:
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