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Scorpion4ik [409]
3 years ago
14

How many squares do you see?

Mathematics
2 answers:
melamori03 [73]3 years ago
6 0

Answer:

<h3>.There are 36 squares........</h3>
Lesechka [4]3 years ago
3 0
36 squares hope this helps
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What is the key action the delegates took up about money?
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<span>Answer: The most important actions the Congress took then, were the Declaration of Independence and the Articles of Confederation. The Second Continental Congress also began to print money.</span>
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3 years ago
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

H₁: β≠0

α: 0.05

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

The estimated regression equation for this regression ^Yi= 20.01 + 0.50X

The standard deviation for the slope is Sb= 0.11

t_{H_0}= \frac{0.50-0}{0.11} = 4.545

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.

In this example: Is the modification of the population mean of the median income, when the median age increases one year.

5 0
3 years ago
Help me please <br> math question
Diano4ka-milaya [45]

Answer: the answer would be D

Step-by-step explanation: in the exponent fraction the root would be 3 because the base of the fraction is thred. Always look at that.  

7 0
3 years ago
Which statement is true about the ratios of squares to<br> cicles in the tables? PLS HURRY!!!!
notka56 [123]

Answer:

show us a screenshot or image

or type it out, copy paste

Step-by-step explanation:

8 0
2 years ago
2X+15= -3x how do you work this equation​
Sphinxa [80]

Answer: x=-3

<u>Add 3x to both sides</u>

<u></u>2x+15+3x=-3x+3x\\5x+15=0<u></u>

<u></u>

<u>Subtract 15 from both sides</u>

<u></u>5x+15-15=0-15\\5x=-15<u></u>

<u></u>

<u>Divide both sides by 5</u>

<u></u>5x/5=-15/5\\x=-3<u></u>

8 0
3 years ago
Read 2 more answers
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