anonymous
  • anonymous
fish tank's design specifies a length that is 8inches longer than the width. Height of the tank is to be 5inches longer than the width. Let w represent the width and write expression for the volume of the tank in terms of w. (8+w)(5+w) 40+8w+5w+w^2 my answer is: w^2+13w+40 is that right?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Why on earth are these questions getting you to expand brackets? Factorised expressions look so much nicer <3
radar
  • radar
Seems volume involves a cube as volume will be in cubic inches.
radar
  • radar
Hey you didn't use the width for width

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radar
  • radar
multiply your answer by width
amistre64
  • amistre64
w ( w^2+13w+40) :)
anonymous
  • anonymous
which is what? ok i see
radar
  • radar
Good.
anonymous
  • anonymous
so the answer is w(w^2+13w+40) or do i need to take w times everything inside the ()?
radar
  • radar
You just did :)
radar
  • radar
Yes, the w is distributed to every term in the ()
anonymous
  • anonymous
I'd either leave it as w(w+5)(w+8) or w^3 + 13w^2 + 40w Pick one of the other, don't get stuck in the middle.
radar
  • radar
Is it satisfactory to your understanding?
anonymous
  • anonymous
yes
radar
  • radar
Great, I am out to lunch. good luck.

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