91影视

The function $C\left(x\right)=20x+6000$represents the cost to produce $x$, number of items. Find 鈸� the average cost function, $c\left(x\right)$鈸� how many items should be produced so that the average cost is less than $\$60$?

The function $C\left(x\right)=5x+900$represents the cost to produce $x$, number of items. Find 鈸� the average cost function, $c\left(x\right)$鈸� how many items should be produced so that the average cost is less than $\$20$?

Simplify$\frac{x^3-8}{3x^2-6x+12}梅\frac{x^2-4}{6}$

Simplify$\frac{2z^2}{z^2-1}梅\frac{z^3-z^2+z}{z^3+1}$

Simplify$\frac{{\displaystyle \frac{3x^2+7x+2}{4x+24}}}{{\displaystyle \frac{3x^2-14x-5}{x^2+x-30}}}$.

Simplify$\frac{{\displaystyle \frac{y^2-36}{2y^2+11y-6}}}{{\displaystyle \frac{2y^2-2y-60}{8y-4}}}$.

Perform the indicated operations.

$\frac{4m+4}{3m-15}路\frac{m^2-3m-10}{m^2-4m-32}梅\frac{12m-36}{6m-48}.$

Perform the indicated operations.

$\frac{2n^2+10n}{n-1}梅\frac{n^2+10n+24}{n^2+8n-9}路\frac{n+4}{8n^2+12n}$.

Perform the indicated operation$\frac{2n^2+10n}{n-1}梅\frac{n^2+10n+24}{n^2+8n-9}路\frac{n+4}{8n^2+12n}$

Find the domain of$R\left(x\right)=\frac{2x^2-10x}{4x^2-16x-20}$.