<img src="https://tex.z-dn.net/?f=%20log_%7B3%7D%28%20%7Bx%7D%5E%7B2%7D%20%20-%20x%20-%202%29%20%3D%202%20log_%7B3%7D%28x%20%2B%

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3 years ago

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201%29%20" id="TexFormula1" title=" log_{3}( {x}^{2} - x - 2) = 2 log_{3}(x + 1) " alt=" log_{3}( {x}^{2} - x - 2) = 2 log_{3}(x + 1) " align="absmiddle" class="latex-formula">

1 answer:

user100 [1]3 years ago

5 0

There are no values of x that make the equation true so no solution.

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Find the domain of f(x) =√3x-1

maw [93]

Answer:

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( − ∞ , ∞ )

{x | x ∈ R }

Hope this helps I'm 80% sure this right.

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3 years ago

What is mZ1?<br> 490<br> 470<br> m21

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490

Step-by-step explanation:

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3 years ago

The U.S. Census Bureau announced that the median sales price in 2014 for new homes was $282,800 and the mean sales price was $34

victus00 [196]

Answer:

a) 0.9964

b) 0.3040

Step-by-step explanation:

Given data:

standard deviation = $90,000

Mean sales price =$345,800

sample mean = $370,000

Total number of sample = 100

calculate z score for [/tex](\bar x = 370000)[/tex]

$z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{370000 - 345800}{\frac{90000}{\sqrt{100}}}$

z = 2.689

P(x<370000) = P(Z<2.689)

FROM STANDARD NORMAL DISTRIBUTION TABLE FOR Z P(Z<2.689) = 0.9964

B)

calculate z score for (\bar x = 350000)

$z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{350000 - 345800}{\frac{90000}{\sqrt{100}}}$

z = 2.133

$P(350000 \leq \bar x \leq 365000) = P(0.467 \leq Z\leq 2.133) = P(Z\leq 2.133) - P(Z\leq 0.467)$

FROM NORMAL DISTRIBUTION TABLE Z VALUE FOR

$P(Z\leq 2.133) = 0.9836$

$P(Z\leq 0.467) = 0.6796$

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4 0

3 years ago

Need help idk how to slove this

Gemiola [76]

Hi!

I'm not sure how to slove this, but I do know how to solve it ;D

<h3>We can't know the exact value of y, but we can isolate y on one side. First, multiply by z on both sides. </h3>

$\frac{x+y}{z*z}=3*z$

x + y = 3 * z

<h3>Now subtract x from both sides.</h3>

x - x + y = 3 * z - x

<u>y = 3 * z - x</u>

<h2>The answer is y = 3 * z - x</h2>

Hope this helps! :)

-Peredhel

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3 years ago

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Pls help with my math quizz

Pavel [41]

Answer is:

A) 20 blocks

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4 years ago