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tresset_1 [31]
3 years ago
8

Please helpp me!! (zoom in to see more clear) please explain your reasoning!!!

Mathematics
2 answers:
zloy xaker [14]3 years ago
6 0

Answer:

I think Zwena is correct

Citrus2011 [14]3 years ago
5 0

Answer:

Neither because reason is incorrect answer of Vicente is wrong and reason of Zwena is wrong.Though her answer is correct her reason is incorrect.

Step-by-step explanation:

expression 9x-2x+4x is done as

9x-2x+4x

9x+4x-2x

13x-2x

11x

You might be interested in
One bunch of seedlees black grapes costs
KiRa [710]

Answer:

8

Step-by-step explanation:

16/2 =8

3 0
3 years ago
. A firm produces a commodity and receives $100 for each unit sold. The cost of producing and selling x units is 20x + 0.25x 2 d
kirza4 [7]
So for each unit they get $100, so if they sell "x" units, they intake 100x, that's just the gross income, and therefore the Revenue.

Now, they have a cost of 20x + 0.25x² if they "x" units, now, bearing in mind that if you pluck out the costs out of the incoming revenue, what's leftover, is a surplus amount, namely the Profit.  Therefore, profit p(x) = revenue - costs, or  100x - (20x + 0.25x²), which is p(x) = -0.25x² +80x.

a)
now, what's the highest profit they can make?  check the picture below.

\bf p(x)=-0.25x^2+80x\\\\
-------------------------------\\\\
\textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lcclll}
p(x) = &{{ -0.25}}x^2&{{ +80}}x&{{ +0}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
\\\\\\
\left( -\cfrac{80}{-0.50}~,~0-\cfrac{80^2}{-1} \right)\implies \left( \stackrel{\textit{quantity}}{160}~,~\stackrel{\textit{profit value}}{6400}  \right)

b)

well, if a tax is imposed on them, and say, they take it out of the revenue, then their new revenue is not 100x, is 90x, thus   \bf p(x)=-0.25x^2+70x

and you can use the same formula as above to get the x-coordinate for that vertex.

\bf p(x)=-0.25x^2+70x\\\\
-------------------------------\\\\
\textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lcclll}
p(x) = &{{ -0.25}}x^2&{{ +70}}x&{{ +0}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
\\\\\\
\left( -\cfrac{70}{-0.50}~,~0-\cfrac{70^2}{-1} \right)

7 0
3 years ago
How many times do you have to multiply 1/3 to get 1/169
Nostrana [21]
1/169) / (1/3
1/169 *3
3/169

Hope this helps :)
4 0
4 years ago
The Sum Of 3 Consecutive integers is 138, What Are The Integers?
puteri [66]

If the integers were all the same, then each one would be 1/3 of 138 = 46 .

They're not all the same, but they're consecutive, so you can find them easily.
Just start with your 3 copies of 46, take ' 1' away from one copy, and add it
to another one. You haven't changed their sum. You just made one of your
copies 1 less than 46, and you made another one of them 1 more than 46. 
Now you have 45, 46, and 47, and that sure looks like an answer to me.
Isn't that easy ... you only had to use some brain instead of a lot of messy
algebra.  That's what 'Brainly' might be all about, I guess.


3 0
4 years ago
Read 2 more answers
OG.TV.To
DENIUS [597]

Answer:

sdfsdfesdfsdfsd

Step-by-step explanation:

6 0
4 years ago
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