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zheka24 [161]
3 years ago
6

I will give brainliest!!!

Mathematics
1 answer:
Sedbober [7]3 years ago
3 0
This is the best answer i could come up with with the information given. i wasn’t sure is 21 cm was the the diameter or the radius. so i gave both possible answers.

if diameter: 65.94 cm

if radius: 131.88 cm


hope this helps :)
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2x^2(-5x^2-4)+4x^4 in simplist form, plz help
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Answer:

-6x^4-8x^2 or -2x^2(3x^2+4)

Step-by-step explanation:

Given expression is:

2x^2(-5x^2-4)+4x^4

In order to write the expression in simplest form we have to multiply the terms which needs to be multiplied.

So,

= -10x^4-8x^2+4x^4

Combining alike terms

= -10x^4+4x^4-8x^2\\=-6x^4-8x^2\\

Can also be written as:

= -2x^2(3x^2+4)

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What is 12.6254748322 rounded to nearest tenth
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12.6

Step-by-step explanation:

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What is the Y-intercept of the following quadratic graph?<br> (1 Point)
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12.56 ft.

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