Question

-m(7-m)-(m-6) при m=4/5​

Answer 1

Ответ:

$\frac{6}{25}$

Answer 2

Ответ: -4/5(7-4/5)-(4/5-6)=-4/5*31/5-(-26/5)=-124/25+26/5=6/25

6/25 или 0.24

Answer 3

To evaluate the expression $-m(7-m) - (m-6)$ when $m = \frac{4}{5}$, you can substitute $m$ with $\frac{4}{5}$ and simplify:

$$\begin{align*} &= -\left(\frac{4}{5}\right)\left(7 - \frac{4}{5}\right) - \left(\frac{4}{5} - 6\right) \\ &= -\left(\frac{4}{5}\right)\left(\frac{35}{5} - \frac{4}{5}\right) - \left(\frac{4}{5} - \frac{30}{5}\right) \\ &= -\left(\frac{4}{5}\right)\left(\frac{31}{5}\right) - \left(\frac{-26}{5}\right) \\ &= -\frac{124}{25} + \frac{26}{5} \\ &= -\frac{124}{25} + \frac{130}{25} \\ &= \frac{6}{25} \end{align*}$$

Therefore, when $m = \frac{4}{5}$, the expression $-m(7-m) - (m-6)$ evaluates to $\frac{6}{25}$.