Answer:
c+4
Step-by-step explanation:
Answer:
26 ft square by 13 ft high
Step-by-step explanation:
The tank will have minimum surface area when opposite sides have the same total area as the square bottom. That is, their height is half their width. This makes the tank half a cube. Said cube would have a volume of ...
2·(8788 ft^3) = (26 ft)^3
The square bottom of the tank is 26 ft square, and its height is 13 ft.
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<em>Solution using derivatives</em>
If x is the side length of the square bottom, the height is 8788/x^2 and the area is ...
x^2 + 4x(8788/x^2) = x^2 +35152/x
The derivative of this is zero when area is minimized:
2x -35152/x^2 = 0
x^3 = 17576 = 26^3 . . . . . multiply by x^2/2, add 17576
x = 26
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As the attached graph shows, a graphing calculator can also provide the solution.
Answer:
Both sides must remain equal.
Step-by-step explanation:
An equation features an equal sign in the middle, therefore showing that both sides are always equal to each other. That is why the answer is equal.
Answer:
The length of a rectangle is 5 m less than three times the width. If the perimeter is 86 m, what are the dimensions or the rectangle? ... If the length of a certain rectangle is decreased by 4 cm and the width is increased by 3 cm, a square with the same ... The perimeter of a rectangle is 99 ft, and the length is twice the width.
Step-by-step explanation: