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viva [34]
3 years ago
10

What is the area of a circle with a radius of 5 inches?

Mathematics
1 answer:
shutvik [7]3 years ago
7 0

Step-by-step explanation:

Given

Radius (r) = 5 inches

Area of the circle

= πr²

= 3.14 * 5²

= 78.5 inches²

Hope it will help :)

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How would you go about finding the solution to this system of three equations in three variables? Be specific. For example, you
kupik [55]
I:2x – y + z = 7
II:x + 2y – 5z = -1
III:x – y = 6

you can first use III and substitute x or y to eliminate it in I and II (in this case x):
III: x=6+y
-> substitute x in I and II:
I': 2*(6+y)-y+z=7
12+2y-y+z=7
y+z=-5

II':(6+y)+2y-5z=-1
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then you can subtract II' from 3*I' to eliminate y:
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3*I'-II':
3y+3z-(3y-5z)=-15-(-7)
8z=-8
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x-(-4)=6
x+4=6
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