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4 years ago

10e-2e-9=39 solve variable. include steps, also check your answer!

Mathematics

1 answer:

mina [271]4 years ago

6 0

Answer:

e = 6

Step-by-step explanation:

10e - 2e - 9 = 39

8e - 9 = 39

8e = 48

e = 6

CHECK:

10(6) - 2(6) - 9 = 39

60 - 12 - 9 = 39

39 = 39

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Answer:

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3 years ago

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kap26 [50]

Roberto did not include the first term of the numerator (0-2)^2 in his calculation.

The mean of the data is also known as average.

Given the set of data 0, 2, 1, 2, 5

Mean = 0+2+1+2+5/5

Mean = 10/5

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To get the standard deviation, we will use the SD formula as shown:

$\sigma=\sqrt{\frac{\sum (x-\overline x)^2}{N} }$

$\sigma =\sqrt{ \frac{(0-2)^2+(2-2)^2+(1-2)^2+(2-2)^2+(5-2)^2}{5}}\\ \sigma = \sqrt{\frac{4+0+1+0+9}{5}} \\\sigma = \sqrt{\frac{14}{5} }\\\sigma = 1.673$

Comparing this with Roberto's calculation, we can see that Roberto did not include the first term of the numerator (0-2)^2 in his calculation.

Learn more here: brainly.com/question/10557301

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