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Licemer1 [7]
4 years ago
9

Solve 7k+2m=kr+4m+3 for k

Mathematics
1 answer:
eimsori [14]4 years ago
7 0
7k + 2m = kr + 4m + 3
7k - kr = 4m - 2m + 3
7k - kr = 2m + 3
k(7 - r) = 2m + 3
k = (2m + 3) / (7 - r)
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The area of sector AOB is 20.25 pi ft ^2 . Find the exact area of the shaded region.
pishuonlain [190]

Remark

If you have the area of the sector, then what you need is the area of the triangle in order to find the area of the shaded area. Just subtract the two.

Area of the triangle

The right angle makes finding the base and height very easy since they are equal

Area_Triangle = 1/2 * b * h

b = 9

h = 9

Area = 1/2 * 9 * 9

Area = 1/2 * 81

Area = 40.5

Area of the Shaded Area

Area_shaded = area of the sector - area of the triangle.

Area_shaded = 20.25 * pi - 40.5

Area_shaded = 20.25(pi - 2) <<<< Answer

4 0
3 years ago
What are the properties used to solve 4(x+3)=20
ryzh [129]

Answer:

Multiproperty

Step-by-step explanation:

To solve this problem, we use different properties to arrive at our answer.

  Given expression;

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       Now use subtraction property by adding (-12) to both sides;

              4x + 12 + (-12)  = 20 + (-12)

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           you can now divide by 4,

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4 0
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yuradex [85]

Answer:

The correct answer is number 2

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prisoha [69]

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Step-by-step explanation:

4 0
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Leno4ka [110]
Each are divisible by 11 so the ratio equivalent would be 7:9
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3 years ago
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