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umka21 [38]
3 years ago
15

I need to find the volume as a function of the diameter! Pls help!! :’D

Mathematics
1 answer:
Lelechka [254]3 years ago
8 0

Answer:

V=( 1/6 )* π * d³

Step-by-step explanation:

We khow that d= 2r⇒ r=d/2

  • so r³= d³/8
  • substitute r with d³/8
  • V= (4/3)*π*(d³/8) = (4/3*8)*d³*π = (1/6 )* d³ *π

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Step-by-step explanation:

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Multiply each term in the first parenthesis by each term in the second (foil)

Step 1: Expand it by writing out each multiplication. I added a picture showing which order to do it. (go in order of green, red, blue, yellow.) (you can remember this as first, outside, inside, last.)

When you expand it'll look like: 4x⋅x+4x⋅-2-5x-5⋅-2

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4x⋅x+4x⋅-2-5x-5⋅-2 (for the 4x⋅x it would be written like 4x^{2})

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