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viva [34]
4 years ago
7

(-root3a-a)² please solve this send answer quickly As soon as possible ​

Mathematics
1 answer:
taurus [48]4 years ago
4 0

Answer:

The expression (-root3·a - a)², can be simplified into the form a² × (4 + 2·√3)

Step-by-step explanation:

The given expression can be written as follows;

(-root3·a - a)² = (-√3·a - a)²

Which can be expanded to give;

(-√3·a - a) × (-√3·a - a) = 3·a² + 2·√3·a² +a²

We collect like terms to get;

3·a² + 2·√3·a² +a² =  3·a² +a²+ 2·√3·a² = 4·a² + 2·√3·a²

We factorize out the common coefficients of the terms  to have;

4·a² + 2·√3·a² = a² × (4 + 2·√3)

Which gives the initial expression (-root3·a - a)², to presented in the form a² × (4 + 2·√3).

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Step-by-step explanation:

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Nuetrik [128]

Answer:

Option: C is the correct answer.

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Step-by-step explanation:

<u>Strong negative correlation--</u>

A negative correlation is a relationship between two variable such that with the increase of one variable the other variable decrease and vice versa.

Negative correlation is also means the two variables have an inverse relationship.

Also, the relationship is strong if all the points lie above the line of best fit.

Hence, from the given set of data the set that represent the strong negative correlation is:

C.    {(-2, 4), (-1, 2), (0, 0), (1, -2) }

Since in this set the x-value is increasing by a constant rate i.e. 1 ( i.e. -2,-1,0 and 1) while the other value is decreasing by a constant rate i.e. 2 ( i.e. 4,2,0 and -2).

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Answer:

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Step-by-step explanation:

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