3 years ago

Help please! Due today!

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

8 0

Answer:

D. (2x-7)

Step-by-step explanation:

Split the equation into two equations by splitting -9x. Make sure that these can be factored further.

(2x² - 2x) + (-7x+7)

2x(x-1) -7(x-1)

create factors using GCFs (2x and -7) and the common factor (x-1)

(2x-7)(x-1)

D. (2x-7)

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ollegr [7]

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3 years ago

A company earns P dollars by selling x items, according to the equation P(x)=-0.002x^2+5.5x-1000. How many items does the compan

san4es73 [151]

So.. check the picture below

that's when the profit gets maximized

$\bf \qquad \textit{vertex of a parabola}\\ \quad \\

\begin{array}{lccclll}
P(x)=&-0.002x^2&+5.5x&-1000\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)$

how many items does the company need to sell? they need to sell $\bf -\cfrac{{{ b}}}{2{{ a}}}$