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EleoNora [17]
3 years ago
8

Please can someone help?

Mathematics
1 answer:
Alina [70]3 years ago
6 0

Step-by-step explanation:

R = 6.5cm and r = 2.3 cm

area of the shaded region = area of the outer circle - area of the inner circle

= πR²-πr²

=π(R²-r²)

=π{(6.5)²-(2.3)²}

=π (42.25-5.29)

= 3.14× 36.96

= 115.866

= 116 cm²

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Answer:

The answer to your question is the letter D. 64π

Step-by-step explanation:

Data

diameter = 8 in

depth = 4 in

Volume = ?

Formula

Volume of a cylinder = πr²h

Process

1.- Calculate the radius

   radius = 8 /2

   radius = 4 in

2.- Calculate the volume

- Substitution

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- Simplification and result

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oksano4ka [1.4K]

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No.

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3 years ago
1 - (2n + 9) = 4(1-2)
Vikki [24]

Answer:

n=-2

Step-by-step explanation:

1−(2n+9)=4(1−2)

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1+−2n+−9=4(1−2)

1+−2n+−9=−4

(−2n)+(1+−9)=−4

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Scorpion4ik [409]

Hello! :)

To solve your equation, we will first simplify both sides of the equation

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-7 = -1 + 1/3x

-7 = 1/3x - 1

Next, we will flip the equation

1/3x - 1 = -7

Third, we will add 1 to both sides

1/3x - 1 + 1 = -7 + 1

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Last, we will Multiply both sides by 3

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x = -18 (ANSWER)

That means -18 is you answer

Hope this helped you!

THEDIPER

3 0
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