Question

Calcule o valor numérico da expressão a seguir -2/3+1-3/2.8/9​

Answer 1

The calculated value is "0.214"

Explanation:

Given expression :

`\bold {(-2)/(3)+ 1 -(3)/((2.8)/(9)) }\\`

solution:

`\Rightarrow (-2)/(3)+ 1 -(3)/((2.8)/(9))\\\\\Rightarrow (-2)/(3)+ 1 -(3)/((2.8)/((9)/(1)))\\\\\Rightarrow (-2)/(3)+ 1 -(3)/(2.8) * (1)/(9)}}\\\\\Rightarrow (-2)/(3)+ 1 -(1)/(8.4)\\\\\Rightarrow (-16.8 + 25.2- 3)/(25.2)\\\\\Rightarrow (5.4)/(25.2)\\\\\Rightarrow 0.214`