(12x3 - 14x2 - 40x) / (2x-5)
Rewriting we have:
(2x (2x-5) (3x + 4)) / (2x-5)
We simplify similar terms:
2x * (3x + 4)
We rewrite:
6x2 + 8x
Answer:
The simplified expression is given in this case by:
6x2 + 8x

8 0

3 years ago

At the beginning of the day the stock market goes up 40 1/4 points and stays at this level for the most of the day. At the end o

Thepotemich [5.8K]

Answer:

a drop of 80 1/4 points

Step-by-step explanation:

close = open + increase - decrease

close = open + 40.25 -120.50

close = open - 80.25

The total change from the beginning of the day is a drop of 80 1/4 points.

7 0

3 years ago

Read 2 more answers

The volumes of two similar figures 27mm^3 and 1331mm^3. If the surface area of the smaller figure is 18mm^2, what is the surface

nlexa [21]

$\bf \qquad \qquad \textit{ratio relations}
\\\\
\begin{array}{ccccllll}
&Sides&Area&Volume\\
&-----&-----&-----\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}
\end{array} \\\\
-----------------------------\\\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{s}{s}=\cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\\\\
-------------------------------\\\\$

$\bf \cfrac{small}{large}\qquad \cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\qquad thus\qquad \cfrac{\sqrt[3]{27}}{\sqrt[3]{1331}}=\cfrac{\sqrt{18}}{\sqrt{a}}
\\\\\\
\cfrac{3}{11}=\sqrt{\cfrac{18}{a}}\implies \left( \cfrac{3}{11} \right)^2=\cfrac{18}{a}\implies \cfrac{3^2}{11^2}=\cfrac{18}{a}\implies a=\cfrac{11^2\cdot 18}{3^2}$

and surely, you know how much that is.

6 0

3 years ago