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umka2103 [35]
3 years ago
9

1 + 44=?????? I NEED HELPPP

Mathematics
1 answer:
Alenkinab [10]3 years ago
4 0

Answer:

45

Step-by-step explanation:

1. Create an Equation

In this case, the equation has been given in the problem.

2. Re-Arrange / Simplify your Equation

Add the numbers 44 + 1. In a horizontal view, it may be easier to convert this equation into a vertical format:

         44

                 +

           1

_______

       

3. Solve your Equation

Now that the equation has been simplified, it's much easier to solve.

         44

                 +

           1

_______

        45

The answer should be 45.

Alternative Solution:

1. Convert the equation into units.

You can choose to view 44 + 1 as units. If you add 44 units to 1 unit, then you will have 45 units in total.

I hope this helped and cleared up any confusion!

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Step-by-step explanation:

The given expression is presented as follows;

\sum\limits _{n = 1}^{50}n\times \left (4\cdot n + 3  \right )

Which can be expanded into the following form;

\sum\limits _{n = 1}^{50} \left (4\cdot n^2 + 3  \cdot n\right ) = 4 \times \sum\limits _{n = 1}^{50} \left  n^2 + 3  \times\sum\limits _{n = 1}^{50}  n

From which we have;

\sum\limits _{k = 1}^{n} \left  k^2 = \dfrac{n \times (n+1) \times(2n+1)}{6}

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Therefore, substituting the value of n = 50 we have;

\sum\limits _{n = 1}^{50} \left  k^2 = \dfrac{50 \times (50+1) \times(2\cdot 50+1)}{6}

\sum\limits _{k = 1}^{50} \left  k = \dfrac{50 \times (50+1) }{2}

Which gives;

4 \times \sum\limits _{n = 1}^{50} \left  n^2 =  4 \times \dfrac{n \times (n+1) \times(2n+1)}{6} = 4 \times \dfrac{50 \times (50+1) \times(2 \times 50+1)}{6}

3  \times\sum\limits _{n = 1}^{50}  n = 3  \times \dfrac{n \times (n+1) }{2} = 3  \times \dfrac{50 \times (51) }{2}

\sum\limits _{n = 1}^{50}n\times \left (4\cdot n + 3  \right ) = 4 \times \dfrac{50 \times (50+1) \times(2\times 50+1)}{6} +3  \times \dfrac{50 \times (51) }{2}

Therefore, we have;

4 \left (\dfrac{50 (50+1) (2\times 50+1)}{6} \right ) +3  \left (\dfrac{50(51) }{2} \right ).

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