3 years ago

If 5(3x – 7 ) = 20, then what is 6x – 8? * 8 12 14 16

1 answer:

5 0

Step-by-step explanation:

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Romashka [77]

YES the ordered pair can satisfy the eqaution

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Vesna [10]

Idk but the web always helps me so you can ask that question online

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NeX [460]

The original was expanded...

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kicyunya [14]

Answer:

$\\ ln(x^2) - ln(x^2 + 1)$ .

For values of x>0, it can be rewritten as $\\ 2ln(x) - ln(x^2 + 1).$

Step-by-step explanation:

For the expression:

$\\ ln(\frac{x^2}{x^2 + 1})$

We can apply this logarithmical property: $\\ ln(\frac{x}{y}) = ln(x) - ln(y).$

Then,

$\\ \frac{x^2}{x^2 + 1} = ln(x^2) - ln(x^2 + 1).$

If we assume values of <em>x </em>> 0 (non negative values for x), then the expression could be rewritten as follows:

$\\ \frac{x^2}{x^2 + 1} = ln(x^2) - ln(x^2 + 1) = 2 ln(x) - ln(x^2 + 1)$ , since $\\ ln(x^{n}) = n*ln(x).$

We have to remember that <em>domain</em> (all possible values x) for logarithmic function is for all x > 0, or mathematically expressed as:

Domain: $\\ {x | x \in R, x > 0}$

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Tatiana [17]

high length:6mletngh of shadow =2~3mø is angle ofelevation

Step-by-step explanation:

hope it helps

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