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2 years ago

I need it quickly which graph could represent the system of equations 4x+2y=8 and 3x-y=1?

Mathematics

1 answer:

levacccp [35]2 years ago

7 0

Answer:

I use Desmos graphing to solve this

^● ●^

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Mark the absolute maximum point of the graph

mixer [17]

the maximum is point

6,-2

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4 years ago

Read 2 more answers

HELP. How long is the minor axis for the ellipse shown below?

kifflom [539]

Given:

The equation of ellipse is

$\dfrac{(x+4)^2}{25}+\dfrac{(y-1)^2}{16}=1$

To find:

The length of the minor axis.

Solution:

The standard form of an ellipse is

$\dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2}=1$ ...(i)

where, (h,k) is center, if a>b, then 2a is length of major axis and 2b is length of minor axis.

We have,

$\dfrac{(x+4)^2}{25}+\dfrac{(y-1)^2}{16}=1$ ...(ii)

On comparing (i) and (ii), we get

$b^2=16$

Taking square root on both sides.

$b=\pm 4$

Consider only positive value of b because length cannot be negative.

$b=4$

Now,

Length of minor axis = $2b$

= $2(4)$

= $8$

So, the length of minor axis is 8 units.

Therefore, the correct option is B.

8 0

3 years ago

Bernice sells 135 sea shells by the sea shore every day. She shells each sea shel for 3 dollars. For how many days does Bernice

horrorfan [7]

First we want to calculate exactly how much money Bernice sells on a daily basis, so we can determine how many days it'll take to earn 2,430 dollars. We can do this by multiplying the amount of shells she sells every day by the amount she sells them for. So 135 sea shells multiplied by 3 dollars.

This comes up to 405 dollars every day, quite a significant amount considering she's selling shells. Now, divide 2,430 dollars by 405 dollars. This will give us the final result.

It will take Bernice exactly 6 days to earn 2,430 dollars.

4 0

3 years ago

REPOST*

xeze [42]