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2 years ago

Cs R Solve for C t Help me solve for the indicated variable

Mathematics

1 answer:

Masteriza [31]2 years ago

7 0

Answer:

Use the drop-down menus to identify the type of context clue that helped you determine the italicized word’s meaning.

Various protuberances, such as rocks, bushes, and ledges, made it easier for the climber to get up the wall.

I made a New Year’s resolution to be generous, but I gave in to avarice instead.

The worst result of the hurricane was the inundation of water that flooded streets and basements.

Step-by-step explanation:

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maria [59]

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frosja888 [35]

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2 years ago

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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