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Hoochie [10]
2 years ago
6

Help please grade 8 20 points and i need it

Mathematics
1 answer:
bearhunter [10]2 years ago
4 0

Answer

1) (4,6)

2) (5,5)

3) (2,6)

Step-by-step explanation:

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miss Akunina [59]

y= 2*x / x+3 that is my answer

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3 years ago
A cylinder has a radius of 20 cm and a height of 2 cm. Find the height of another cylinder that has a radius of 4 cm and the sam
iogann1982 [59]

Answer:

The height of the another cylinder 'h'  = 7

Step-by-step explanation:

<u>Explanation</u>:-

<u>Step 1:-</u>

Surface area of the cylinder  = 2пrh + 2пr^2

Given radius of first cylinder is 20cm

given height of the first cylinder is 2 cm

The surface area of first cylinder is = 2пrh + 2пr^2

                                                          = 2п(20)(2)+2п(2)^2

                                                          = 4п(20+2)

The surface area of first cylinder is  88п

<u>Step 2</u>:

given data The surface area of first cylinder is  88п is same as second cylinder also

<u>Find the height of the second cylinder</u>

Given Radius of the second cylinder r = 4

Surface area of the cylinder  = 2пrh + 2пr^2 = 88п

                                                   2п(4)h+2п(4)^2 =88п

on simplification we get

                                   2п (4h+16) = 88п

after cancellation '2п' value and on simplification, we get

                                    4h+16 = 44

                                    4h = 44-16

                                  4h = 28

                                 h=7

Therefore the height of the another cylinder is 'h' =7

                                   

3 0
3 years ago
Which of the expressions are equivalent to the one bllow? Check all that
nlexa [21]

Answer:

Option A is correct ...Both have value 42

mark me as brainliest ❤️

8 0
3 years ago
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What is the result of subtracting the second equation from the first?​
butalik [34]

Answer:

-5x + 7

Step-by-step explanation:

-4x - 2y = -2

x - 2y = 9

First, you're going to subtract the equations from each other.

(-4x - 2y = -2) - (x - 2y = 9)

Next, you need to get rid of the equal sign in both equations.

(-4x - 2y = -2) - (x - 2y = 9)

     +2       +2        -9      -9  

After you get rid of the equal signs, you will distribute the sign to the equation and then subtract everything.

-4x - 2y + 2 - x + 2y + 9

Now, combine the like terms.

(-4x -x) + (-2y + 2y) + (2 + 9)

Finally, calculate the terms and solve.

-5x + 7

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To take the neighbor's children to the
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Answer:

h>27

Step-by-step explanation:

process of elimination on numbers I'm assuming this is not requiring decimals

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2 years ago
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