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Kay [80]
3 years ago
11

-6x+4y=-4 -6x+2y= 4 solve for x and y

Mathematics
1 answer:
jeyben [28]3 years ago
8 0

Answer:

Step-by-step explanation:

hello :  -6x+4y=-4....(*)

          -6x+2y= 4...(**)

by (*) : -6x= -4y-4

by(**) : -6x = -2y+4

so :   -4y-4=-2y+4

     -2y = 8

y=-4

put this value in (*) : -6x+4(-4)= - 4

-6x=16-4=12

x=-2

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A <em>circle</em> is a figure <u>bounded</u> by a <em>curved</em> side which is referred to as <em>circumference</em>. Thus the area of the <u>shaded</u> region is option D. 81.65.

A <em>circle</em> is a figure<u> bounded</u> by a <em>curved</em> side which is referred to as <u>circumference</u>. Some of its <u>parts</u> are radius, diameter, sector, arc, etc.

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where r is the <u>radius</u> of the circle and π = \frac{22}{7}

So, the area of the <u>shaded</u> region can be determined as:

Area of the <em>shaded</em> region = <em>area </em>of the <u>larger</u> circle - <em>area</em> of the <u>smaller</u> circle

Area of the<em> shaded </em>region = π(6.8)^{2} - π(4.5)^{2}

                                            = π (46.24 - 20.25)

                                            = \frac{22}{7} x 25.99

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<u>Area</u> of the <em>shaded</em> region = 81.683

Thus the<u> appropriate</u> answer to the question is option D. 81.65.

For more clarifications on the area of a circle, visit: brainly.com/question/3747803

#SPJ1

   

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