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Stels [109]
3 years ago
11

Choosing a 4-letter password using only 5 letters that may each be used more than once. How do you do this??

Mathematics
1 answer:
qwelly [4]3 years ago
3 0
I think that you either have to subtract both or multiply but i feel like its multiplying so I think its multiplying
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How many pounds go into 2. 5 tons
daser333 [38]
2.5 tons = 5000 pounds

3 0
3 years ago
For all x, (5x4 + 3x3 – x2 + 6) - (3x4 – x3 + 2x - 1) = ?
KIM [24]
If you simplify it is x^3-x^2-2x+ 24
8 0
2 years ago
A rectangular tank with a square​ base, an open​ top, and a volume of 8 comma 7888,788 ft cubedft3 is to be constructed of sheet
Vlad [161]

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.

_____

<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

_____

As the attached graph shows, a graphing calculator can also provide the solution.

5 0
3 years ago
What is the answer??
igomit [66]
Tbh I don’t really know but if it did I would of help you
3 0
3 years ago
If Claire earns $75 the next week from babysitting and deposits it in her account, what will her balance be then?
nataly862011 [7]
It will be 75$ i guess the question is a bit wrong please recheck
5 0
3 years ago
Read 2 more answers
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