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Oksana_A [137]
3 years ago
7

Find the common ratio of the geometric sequence: 4,3,9/4

Mathematics
1 answer:
Inessa05 [86]3 years ago
4 0

Answer:

The common ratio is

\frac{3}{4}

Step-by-step explanation:

To find the common ratio in a geometric sequence divide the next term by the previous term

That's

The first term is 3 and the next term is 4

so the common ratio will be

<h2>3/4</h2>

Hope this helps you.

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361 DIVIDED by 190,969
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If f(x) = 2(x − 5), find f(8).
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A regional planner employed by a public university is studying the demographics of nine counties in the eastern region of an Atl
Brilliant_brown [7]

Answer:

Step-by-step explanation:

Hello!

Given the variables:

X₁: Median Age

X₂: Median Income

b) Considering it from a logical point of view, income changes with age, for example, the more experienced the worker is you would think he would get a better paying job than a younger worker who is just starting. Then the dependent variable will be the median income and the independent variable will be the median age.

a)  and c)

To see if there is a linear regression between the median income and median age you have to conduct a hypothesis test for the slope. If the slope is equal to zero, there is no linear regression between the two variables, if it is different to zero, there is a regression between the two of them:

H₀: β=0

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α: 0.05

t= \frac{b-\beta }{Sb} ~~t_{n-2}

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And the p-value for the test is 0.0022

The p-value is less than the level of significance I choose, so the decision is to reject the null hypothesis. You can conclude that there is a linear regression between these two variables.

The correlation coefficient between the median income and the median age is r= 0.87 ⇒ This means you could expect a positive and strong linear correlation between the two variables.

d)

The slope represents how much the variable Y is modified whenever the variable X increases one unit.

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5 0
3 years ago
2(3x+1)=11 help me plz​
padilas [110]

Answer:

x=18

Step-by-step explanation:

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3 years ago
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