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tangare [24]
3 years ago
14

What's .61 repeating as a decimal

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
7 0

Answer:

0.6111111111111111111111111111

Step-by-step explanation:

over and over non stop

Vaselesa [24]3 years ago
4 0

Answer:

its the same, answer is .61 repeating

Step-by-step explanation:

.61 is already a decimal

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A random sample of n 1n1equals=139139 individuals results in x 1x1equals=3737 successes. An independent sample of n 2n2equals=14
gulaghasi [49]

Answer:

z=-2.32  

p_v =P(Z  

If we compare the p value and using any significance level for example \alpha=0.05 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can say the the proportion 1 is significant lower than the proportion 2 at 5% of significance.  

Step-by-step explanation:

1) Data given and notation  

X_{1}=37 represent the number of people with characteristic 1

X_{2}=58 represent the number of people with characteristic 2

n_{1}=139 sample 1 selected

n_{2}=147 sample 2 selected

p_{1}=\frac{37}{139}=0.266 represent the proportion of people with characteristic 1

p_{2}=\frac{58}{147}=0.395 represent the proportion of people with characteristic 2

z would represent the statistic (variable of interest)  

p_v represent the value for the test (variable of interest)

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to check if the proportion 1 is less than the proportion 2, the system of hypothesis would be:  

Null hypothesis:p_{1} \geq p_{2}  

Alternative hypothesis:p_{1} < p_{2}  

We need to apply a z test to compare proportions, and the statistic is given by:  

z=\frac{p_{1}-p_{2}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{1}}+\frac{1}{n_{2}})}}   (1)

Where \hat p=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{37+58}{139+147}=0.332

3) Calculate the statistic

Replacing in formula (1) the values obtained we got this:  

z=\frac{0.266-0.395}{\sqrt{0.332(1-0.332)(\frac{1}{139}+\frac{1}{147})}}=-2.32  

4) Statistical decision

For this case we don't have a significance level provided \alpha we can assuem it 0.05, and we can calculate the p value for this test.  

Since is a one left tailed test the p value would be:  

p_v =P(Z  

So if we compare the p value and using any significance level for example \alpha=0.05 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can say the the proportion 1 is significant lower than the proportion 2 at 5% of significance.  

5 0
3 years ago
Consider the following equations and name the property of equality used to solve for the variable.
Viktor [21]

9514 1404 393

Answer:

  A. subtraction

  B. division

  C. multiplication

  D. addition

Step-by-step explanation:

Observe what is done to the variable. Choose the operation that turns the unwanted value into the appropriate identity element.

A. 3.75 is added. To make that value be 0, we subtract 3.75.

B. -3 is multiplied. To make that value be 1, we divide by -3.

C. m is divided by 5. To make that 1/5 multiplier be 1, we multiply by 5.

D. 4 is subtracted. To make that value be zero, we add 4.

_____

<em>Additional comment</em>

Since subtraction is the same as addition of the opposite, and division is the same as multiplication by the reciprocal, the only two properties we really need are the <em>addition property</em> and <em>multiplication property</em>. Your grader may disagree.

5 0
3 years ago
Simplest form 2/5ths
ratelena [41]

Answer:

2/5 is the simplest form. But in decimal form it is 0.4

Step-by-step explanation:

2/5

=2 divided by 5

=0.4

7 0
3 years ago
Read 2 more answers
Mind my hand writing but I’m not sure what sign to put the “-“ or the “+” ?
Ierofanga [76]

hello!

so the answer that you put there is actually wrong and i'll tell you why and how to do it

so since you are adding the two:

-8x + 9x = x (so you got this part right)

-12 + 4 = -8 (this is where you got it wrong, -12 added 4 goes up in value to -8)

so the final answer is x - 8

i hope this helped and have a nice day!

4 0
3 years ago
Read 2 more answers
Analyze the diagram below and complete the instructions that follow. / Describe the translation that maps the preimage to the im
Flura [38]

Where is the image?????

8 0
3 years ago
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