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2 years ago

Problem 1:

Mathematics

2 answers:

wariber [46]2 years ago

6 0

Answer:

x=1/6

Step-by-step explanation:

3x+4=9x+3

isolate x

1=6x

1/6=x

levacccp [35]2 years ago

4 0

<h3>Hello!</h3>

$======================================$

First, let's move all the x's to the left:

3x+4=9x+3

3x-9x+4=3

Now, move 4 to the right:

3x-9x=3-4

Combine Like Terms:

-6x=-1

Divide both sides by -6:

x= $\displaystyle\frac{1}{6}$

$=========================================$

<h3>Notes:</h3>

Hope everything is clear.
Let me know if you have any questions!
Always remember: $\boxed{Knowledge~is~power!}$
Good luck & enjoy your day!

<h3>Answered by:</h3>

$\mathcal{Diamond}$ ( $\boxed{An~Emotional~Helper}$ )

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Step-by-step explanation:

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3 years ago

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3 years ago

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3 years ago

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Bogdan [553]

Answer:

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Step-by-step explanation:

Data provided in the question:

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a) The test statistic is given as:

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on substituting the respective values, we get

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Now from standard normal table

$Z_{0.025}$ = -1.96

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3 years ago