Algebra Examples

4

$4$ ,

5

$5$ ,

6

$6$ ,

7

$7$ ,

8

$8$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

\frac{4 + 5 + 6 + 7 + 8}{5}

$\frac{4 + 5 + 6 + 7 + 8}{5}$

Step 2

Simplify the numerator.

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Step 2.1

Add

4

$4$ and

5

$5$ .

\frac{9 + 6 + 7 + 8}{5}

$\frac{9 + 6 + 7 + 8}{5}$

Step 2.2

Add

9

$9$ and

6

$6$ .

\frac{15 + 7 + 8}{5}

$\frac{15 + 7 + 8}{5}$

Step 2.3

Add

15

$15$ and

7

$7$ .

\frac{22 + 8}{5}

$\frac{22 + 8}{5}$

Step 2.4

Add

22

$22$ and

8

$8$ .

\frac{30}{5}

$\frac{30}{5}$

\frac{30}{5}

$\frac{30}{5}$

Step 3

Divide

30

$30$ by

5

$5$ .

6

$6$

4, 5, 6, 7, 8

$4, 5, 6, 7, 8$

(

(

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)

|

|

[

[

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]

√

√





≥

≥





















7

7

8

8

9

9













≤

≤





















4

4

5

5

6

6

/

/

^

^

×

×

>

>









∩

∩

∪

∪





1

1

2

2

3

3

-

-

+

+

÷

÷

<

<







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π

π

∞

∞

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,

,

0

0

.

.

%

%



=

=









[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$