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3 years ago

10x — 12y = 6 5х – бу=3

Mathematics

1 answer:

Anon25 [30]3 years ago

4 0

Answer:

The equations system has multiple solutions for x, y.

Step-by-step explanation:

Let's solve for x and y this equations system:

We can observe that the second equation is a simplification of the first (divided by 2) and therefore, the system has multiple solutions for x and this way:

x y

-27/5 -5

-21/5 -4

-3 -3

-9/5 -2

-3/5 -1

3/5 0

9/5 1

3 2

21/5 3

27/5 4

33/5 5

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marshall27 [118]

Answer:

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(b)24 sections

Step-by-step explanation:

(a)We are required to find the length of the Giant Sub.

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Length per Section X Number of Sections

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(b)If each section is 1/4 of a feet long

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3 years ago

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Eva8 [605]

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3 years ago

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Sveta_85 [38]

Answer:

Step-by-step explanation:

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2 years ago

Use Word to documents your comparison of the two years and explain your findings in at least two paragraphs. Including: Explain

pickupchik [31]

In statistics, the standard deviation deviation may be a measure of the quantity of variation or dispersion of a group of values. The margin of error may be a statistic expressing the number of sampling error within the results of a survey. The correlation could be a statistical measure of the strength of the connection between the relative movements of two variables.

Given nothing and that we need to explain standard deviation. margin of error, correlation coefficient .

Standard deviation

In statistics, the standard deviation may be a measure of the number of variation or dispersion of a group of values. an occasional variance indicates that the values tend to be near the mean of the set, while a high variance indicates that the values are detached over a wider range.

Formula: $\sqrt{(x-x bar)^{2}/N }$

where x bar is mean and N is size of population.

Margin of error

The margin of error may be a statistic expressing the quantity of sampling error within the results of a survey. The larger the margin of error, the less confidence one should have that a poll result would reflect the results of a survey of the complete population.

Formula for M=z*s/ $\sqrt{n}$

here z is z value of Z score , s is variance , n is that the sample size.

Correlation coefficient

In statistics, the Pearson parametric statistic ― also called Pearson's r, the Pearson product-moment parametric statistic, the bivariate correlation, or colloquially simply because the coefficient of correlation ― could be a measure of linear correlation between two sets of information.

Formula=∑ $(x_{i} -x bar)(y_{i} -y bar)/\sqrt{}$ ∑ $(x_{i} -x bar)^{2}$ ∑ $(y_{i}-ybar) ^{2}$