The correct answer is it is a figure with at least 3 straight sides. When you think of a square or a triangle they both have at least 3 sides that are straight. A circle doesn't have any straight sides so it is not a polygon.
You can prove that the other answer is wrong because of two things:
The definition of a polygon is a plane figure with at least three straight sides.
Also, when you think of most shapes what do they all have in common? The have at least three straight sides
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sorry it's late but hopefully it can help someone else
Answer:
For part A
10.08x=y
Step-by-step explanation:
252/25=10.08
x=number of hours=25
y=how much earned=252
10.08(25)=252
10 because 45x3=135 205-125=70 70 divided by 7 equals 10
Answer:
Step-by-step explanation:
It is a linear homogeneous differential equation with constant coefficients:
y" + 4y = 0
Its characteristic equation:
r^2+4=0
r1=2i
r2=-2i
We use these roots in order to find the general solution:
