Question

[(20+21^2-116874/9)/(20/0.09507 x12-21/(116874/9))]^-1

Answer 1

Answer:

-0.202

Explanation:

The given expression is:

$\lbrack(20+21^2-116874\div9)\div(20\div0.09507\times12-21\div(116874\div9))\rbrack^{-1}$

Using the PEMDAS rule, the expression can first be simplified as:

$\lbrack(20+441-12986)\div(\frac{240}{0.09507}-21\div12986)\rbrack^{-1}$$\lbrack-12525\div(2524.456-0.00162)\rbrack^{-1}$

This can be further simplified as:

$\begin{gathered} \lbrack-12525\div2524.454\rbrack^{-1} \\ \lbrack-4.96\rbrack^{-1} \\ -\frac{1}{4.96} \\ =-0.202 \end{gathered}$