Precalculus Examples

$- 130000 + \sum_{1}^{30} 12727.24$

Step 1

Evaluate $\sum_{1}^{30} 12727.24$ .

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Step 1.1

The formula for the summation of a constant is:

$\sum_{k = 1}^{n} c = c n$

Step 1.2

Substitute the values into the formula.

$(12727.24) (30)$

Step 1.3

Multiply $12727.24$ by $30$ .

$381817.2$

$381817.2$

Step 2

Add $- 130000$ and $381817.2$ .

$251817.2$

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