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sattari [20]
2 years ago
5

Solve 3^2x-5=81 Please show work

Mathematics
1 answer:
Strike441 [17]2 years ago
5 0
Let's solve your equation step by step
(3^2)(x)-5=81
step 1:simplify both sides of the equation
(3^2)(x)-5=81
simplify.
9x-5=81
step 2:Add 5 to both sides.
9x-5+5=81+5
9x=86
divide both sides by 9.
9x/9=86/9
x=86/9
Answer:86/9

Hope this helps!
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Answer:

The confidence interval is (24116.3878,24883.6122).

Step-by-step explanation:

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Confidence interval:

\bar{x} \pm t_{critical}\frac{s}{\sqrt{n}}  

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t_{critical}\text{ at}~\alpha_{0.05} = \pm 1.655436

24500 \pm 1.65543(\frac{2800}{\sqrt{146}} ) = 24500 \pm 383.6122 = (24116.3878,24883.6122)

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Is negative twelve a whole number,integer,or rational number?
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8 0
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Read 2 more answers
Nine students were asked how many miles they live from school. Their answers are listed below.
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Answer:  The mode is: 3 .  The range is:  6 .
___________________________________
Explanation:
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  It would be best to list this values in the data set given, from least to greatest:
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  { 3, 3, 3, 3, 4, 5, 5, 6, 9 } .
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  The mode is the number that occurs most frequently in the data set, which is: "3".
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{The number, "3", occurs FOUR (4) times.  The number, "4", occurs ONE (1) time.  The number, "5", occurs TWO (2) times.  The number, "6", occurs ONE (1) time.  The number, "9", occurs ONE (1) time.}.
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The range is calculated from subtracting the LOWEST value in the data set FROM the HIGHEST value in the data set.
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 The lowest values in the data set is: "3" .
 
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 To calculate the range:  9 <span>− 3  = 6 .  The range is:  "6".
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  Answer:  The mode is:  3 .  The range is:  6 .
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8 0
3 years ago
Estimate -9 1/6 + 2 1/3 + (-1 7/8) I have more questions so if you want more just simply ask.
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-8.70833333333 about but you can round to the nearest tenth (-8.7) or nearest whole number (-9)

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