Question

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

Answer 1

Answer:

-0.202

Step-by-step explanation:

The given expression is:

`\lbrack(20+21^2-116874/9)/(20/0.09507*12-21/(116874/9))\rbrack^(-1)`

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

`\lbrack(20+441-12986)/((240)/(0.09507)-21/12986)\rbrack^(-1)`
`\lbrack-12525/(2524.456-0.00162)\rbrack^(-1)`

This can be further simplified as:

`\begin{gathered} \lbrack-12525/2524.454\rbrack^(-1) \\ \lbrack-4.96\rbrack^(-1) \\ -(1)/(4.96) \\ =-0.202 \end{gathered}`