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2 years ago

I need help with 8th grade math please hurry and correct answer please 40 points

Mathematics

2 answers:

scoundrel [369]2 years ago

8 0

Answer:

2664.3

Step-by-step explanation:

The volume of a sphere is

V = 4/3 πr³

Multiply the radius (which is the diameter divided by 2), 8.6 by itself 3 times, and them multiply it by pi and 4/3 to achieve a volume of 2664.31 or aproximatley 2664.3.

emmainna [20.7K]2 years ago

6 0

Answer:

v=59 m3 i think if it helps please mark brainliest

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For what values of x'is x2 + 2x = 24 true?

Paladinen [302]

Answer:

$\boxed{Values \: true \: of \: 'x' \: for \: equation \: {x}^{2} + 2x = 24 \: is \: -6 \: and \: 4}$

Step-by-step explanation:

$= > {x}^{2} + 2x = 24 \\ \\ = > {x}^{2} + 2x - 24 = 0 \\ \\ = > {x}^{2} + (6 - 4)x - 24 = 0 \\ \\ = > {x}^{2} + 6x - 4x - 24 = 0 \\ \\ = > x(x + 6) - 4(x + 6) = 0 \\ \\ = > (x + 6)(x - 4) = 0 \\ \\ = > x + 6 = 0 \: \: \: \: \: \: \: \: and \: \: \: \: \: \: \: \: \: x - 4 = 0 \\ \\ = > x = - 6 \: \: \: \: \: \: \: \: \: \: and \: \: \: \: \: \: \: \: \: x = 4$

Values true of 'x' for equation x² + 2x = 24 is -6 and 4

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3 years ago

5x-2=6x-8 what’s the answer

fomenos

Answer:

x=6

Step-by-step explanation:

5x = 30

30 - 2 = 28

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28 = 28

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3 years ago

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