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Brums [2.3K]
2 years ago
9

How do I solve this?​

Mathematics
2 answers:
Bad White [126]2 years ago
5 0

Answer: <em>81</em>

Step-by-step explanation:

<em>3^4</em>

<em>3x3x3x3</em>

<em>3x3=9</em>

<em>9x3=27</em>

<em>27x3=</em><em>81</em>

Kamila [148]2 years ago
3 0
Exponents are easy, first you have the number and the exponent and times it by the number hope this helps have a nice day :) answer (81)
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5. Order from least to greatest.<br> 17 94<br> 0.951,<br> 20% 100<br><br><br> Pls help
lina2011 [118]

0.951    20%    17   94   100

8 0
3 years ago
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 47.3 m
Marta_Voda [28]

Answer:

\bar X = \frac{2276}{48}=47.417

If we compare this value with the 47.3 proposed we have the following error

Error = \frac{|Actual-real|}{real}*100 = \frac{|47.417-47.3|}{47.3}*100 =0.247\%

The computed mean is close to the actual mean because the difference between the means is less than 5%.  

Step-by-step explanation:

Assuming the following dataset:

Speed   42-45  46-49  50-53  54-57  58-61

Freq.         21        15        6           4          2

And we are interested in find the mean, since we have grouped data the formula for the mean is given by:

\bar X = \frac{\sum_{i=1}^n x_i f_i}{\sum_{i=1}^n f_i}

And is useful construct a table like this one:

Speed     Freq    Midpoint   Freq*Midpoint

42-45       21            43.5       913.5

46-49       15            47.5        712.5

50-53       6             51.5         309

54-57        4            55.5         222

58-61        2             59.5        119

Total       48                           2276

And the mean is given by:

\bar X = \frac{2276}{48}=47.417

If we compare this value with the 47.3 proposed we have the following error

Error = \frac{|Actual-real|}{real}*100 = \frac{|47.417-47.3|}{47.3}*100 =0.247\%

The computed mean is close to the actual mean because the difference between the means is less than 5%.  

6 0
3 years ago
The prime factors of 52 in order from least to greatest are???
Drupady [299]

Answer:

2 x 2 x 13

Step-by-step explanation:

2 times 26 = 52

You can break 26 up into 2 times 13.

So, you get 2 times 2 times 13.

8 0
2 years ago
Will pay $5 to whoever solves this :)
Nataly [62]
Can u send a better picture pls
8 0
3 years ago
Write an equation of the line with the given slope and y-intercept: m = negative 5, b = 4
NeTakaya

Answer: y= -5x+4

Step-by-step explanation:

6 0
3 years ago
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