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rishamoore
20.12.2019 •
Mathematics
Abox without a top is made from a rectangular piece of cardboard, with dimensions 25 inches by 20 inches, by cutting out square corners with side length x inches.
which expression represents the volume of the box in terms of x?
(2x−25)(2x−20)x
(25−2x)(20−2x)x
(25−x)(20−x)x
(25−2x)(20−2x)4x
Solved
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Ответ:
The second option :: V =
is correct.
Step-by-step explanation:
The vertical side was 25 inches before cutting out the corners.
The horizontal side was 20 inches before cutting out the corners.
So now, if you fold all of the corner up, you get a box that has a height of "x".
The sides are now missing a length of x from each end.
So the longer edges of the box are now
inches
The shorter edges of the box are now
inches
The volume of a box is given by V = length x width x height
So, here the volume becomes:
V =
cubic inches.
Ответ: