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pakabigail7116
05.08.2019 •
Mathematics
If you want to produce an open-top box from a 16 in by 22 in flat piece of cardboard, what is the maximum possible volume (in in3) of the box? round your answer to the nearest whole number and omit units.
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Ответ:
480
Step-by-step explanation:
Since, for making a box from a cardboard,
We need to cut four congruent pieces from each corner of the cardboard,
Let x be the side of a piece ( in inches ),
Given,
The dimensions of the cardboard are 16 in by 22,
So, the dimension of the box would be (16-2x) in by (22-2x) in by x in,
Thus, the volume of the box,
Differentiating with respect to x,
Again differentiating with respect to x,
For maxima or minima,
V'(x) = 0
By the quadratic formula,
Since, for x = 9.62, V''(x) = positive,
While for x = 3.05, v''(x) = negative,
Hence, volume is maximum for x = 3.05,
And, maximum volume,
Ответ:
Answer & Step-by-step explanation:
Use the slope formula:
The slope is the change in the y-axis over the change in the x-axis, otherwise known as rise over run. Insert values:
Simplify. Two negatives make a positive:
Solve:
The slope is 0. Plot the two points on a graph and connect with a straight line: