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2 years ago

I WILL AWARD BRAINLIEST!! PLEASE HELP!!

Mathematics

1 answer:

Marrrta [24]2 years ago

7 0

Answer:

Fist one:

x−2=−3

Second one: a=63b/23

Third one: x=−a/2+3b/2

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Using the arrows, move the letters in the left column up or down to place them in the correct order from top to

Ivenika [448]

Answer:

c, d, a, b.

Step-by-step explanation:

I'm presuming that the original equation is $7c+\frac{k}{2}=15$ .

First, isolate c. You can do this by subtracting $\frac{k}{2}$ from both sides: $7c+\frac{k}{2}-\frac{k}{2}=15-\frac{k}{2}$

Next, simplify to $7c=15-\frac{k}{2}$ .

Then, divide both sides by 7: $\frac{7c}{7}=\frac{15-\frac{k}{2}}{7}$

Finally, simplify to $c=\frac{15}{7}-\frac{k}{14}$ .

6 0

2 years ago

What single decimal multiplier would you use to decrease by 2% followed by a 7% decrease?

serg [7]

Here is your answer.

3 0

2 years ago

PLZ HELP ASAPPPPPP find the rate of change from the points 5,24 and 36,7.5

Licemer1 [7]

Y₂-y₁ ÷x₂-x₁ =

(7.5 - 24) ÷ (36-5) =

-16.5 ÷ 31 = -16.5/31 ≈ -0.5322480

Or as a fraction: -33/62

7 0

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