Question

Evaluate \dfrac{3}{2}+(-k)+(-2)

Answer 1

As I understand, we need to evaluate the given rational expression, we will get that the evaluated expression is equal to - 1/10

Evaluating expressions:

Evaluating an expression just means that we need to replace the variable in the expression for a given value, here we have the expression:

$\frac{3}{2} + (-k) + (-2)$

And we want to evaluate it in:

$k = -\frac{2}{5}$

So we just need to replace k by that value in the above expression, we will get:

$\frac{3}{2} + (-(-\frac{2}{5} )) + (-2)$

Now we can just solve this:

$\frac{3}{2} + (-(-\frac{2}{5} )) + (-2)\\\\\frac{3}{2} + \frac{2}{5} + (-2)\\\\\frac{15}{10} + \frac{4}{10} + (-2) = \frac{19}{10} - \frac{20}{10}= -\frac{1}{10}$

If you want to learn more about evaluating expressions, you can read:

brainly.com/question/4344214