Basic Math Examples

74

$74$ ,

81

$81$ ,

77

$77$ ,

88

$88$

Step 1

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

\frac{74 + 81 + 77 + 88}{4}

$\frac{74 + 81 + 77 + 88}{4}$

Step 2

Simplify the numerator.

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Step 2.1

Add

74

$74$ and

81

$81$ .

\frac{155 + 77 + 88}{4}

$\frac{155 + 77 + 88}{4}$

Step 2.2

Add

155

$155$ and

77

$77$ .

\frac{232 + 88}{4}

$\frac{232 + 88}{4}$

Step 2.3

Add

232

$232$ and

88

$88$ .

\frac{320}{4}

$\frac{320}{4}$

\frac{320}{4}

$\frac{320}{4}$

Step 3

Divide

320

$320$ by

4

$4$ .

80

$80$

⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

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