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2 years ago

What is the range of the relation shown on the graph?

Mathematics

1 answer:

Eddi Din [679]2 years ago

7 0

you have to look at a graph in order to figure out the answer so it would be... -9, 7 for the top left

9, 4 for the top right

0, -3 for the coordinatate in the middle

-5, -2 for the bottom left

and 1, -8 for the bottom right

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2 Points

liraira [26]

Two or zero expresses the possible number of positive real solutions for the given polynomial equation.

Answer: Option D

<u>Step-by-step explanation:</u>

Given equation:

$x^{3}-4 x^{2}-7 x+28=0$

First, we put hit and trial method to find out the one solution. So, if we put x=4 then the above expression will become zero. We can also write the above expression as

$(x-4) \times\left(x^{2}-7\right)=0$

We know the formula, $a^{2}-b^{2}=(a+b)(a-b)$ , make use of this, we get

$(x-4) \times(x-\sqrt{7}) \times(x+\sqrt{7})=0$

So, $x=4, \sqrt{7},-\sqrt{7}$

Hence, from the above expression, we have three values of x as x= 4, 2.64 and -2.64

8 0

2 years ago

Which statement correctly describes this expression?<br> 2m^3 - 11

Nady [450]

Answer:

The cube of twice a number decreased by 11

6 0

2 years ago

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r-ruslan [8.4K]

I think 7x-y=-2 is the answer

3 0

3 years ago

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2 years ago

What simplified common fraction is equivalent to $0.0\overline{57}$?

Blizzard [7]

Answer:

Step-by-step explanation:

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4 0

3 years ago