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strojnjashka [21]
3 years ago
10

between 9 p.m. and 6:36 a.m.​, the water level in a swimming pool decreased by 6/25. assuming that the water level decreased at

a constant​ rate, how much did the water level drop each​ hour?
Mathematics
1 answer:
Licemer1 [7]3 years ago
8 0

Answer:

The hourly drop between the two times is 1/40

Step-by-step explanation:

Firstly, we need to find the difference in time between 9 pm and 6:36 am

That would be 9 hours and 36 minutes

It would be needed to convert 36 minutes to hours

Mathematically, 60 minutes = 1 hour

So 36 minutes = (36 * 1)/60 = 36/60 = 0.6

So the difference between the two time is simple 9.6 hours

So the total drop during the time is given by 6/25

So the hourly drop will be 6/25 divided by 9.6

= 6/25 * 1/9.6 = 6/240 = 1/40

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Answer:

The given statement is false.

Step-by-step explanation:

Correlation

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • It is a measure of linear relationship between two quantities.

Thus, we can say that the given statement is false.

Correlation coefficient does not measure non linear relationship between two variables.

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3 years ago
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I think its that

Step-by-step explanation:

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mario62 [17]
We can turn this word problem into the following equation:
x^2 + 85 = (x - 17)^2
  x^2 + 85 = x^2 - 34x + 289
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_______________________
      x^2 = x^2 - 34x + 204                    
     +34x         +34x
_______________________
 x^2 + 34x = x^2 + 204
-x^2             -x^2
____________________
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The number is 6.
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What is the solution to the system of equations?
elixir [45]

Answer:

No solution

Step-by-step explanation:

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Lets consider the equation 2.

Here we multiply the LHS and RHS with (-1).

-3x-4y-3z=-7\\-(2x-6y+2z)=-3\\5x-2y+5z=9\\\\

Hence,

-3x-4y-3z=-7\\-2x+6y-2z=-3\\5x-2y+5z=9\\\\

When we add the equations we get,

0x+0y+0z=-10+9\\Hence,\\0=-1

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Answer:

5.0

Step-by-step explanation:

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