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dem82 [27]
3 years ago
10

What are the possible coordinates of point a?

Mathematics
1 answer:
Tanzania [10]3 years ago
8 0

Answer:

(0,5)

Step-by-step explanation:

Hope this helped, Have a Great Day!!

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A sample of 13 sheets of cardstock is randomly selected and the following thicknesses are measured in millimeters. Give a point
valina [46]
<h3>Answer:  0.061</h3>

===============================================

Explanation:

Add up the values to get

1.96+1.81+1.97+1.83+1.87+1.84+1.85+1.94+1.96+1.81+1.86+1.95+1.89= 24.54

Then divide over 13 (the number of values) to get 24.54/13 = 1.8876923 which is approximate.

So the mean is approximately 1.8876923

---------------------

Now make a spreadsheet as shown below

We have the first column as the x values, which are the original numbers your teacher provided. The second column is of the form (x-M)^2, where M is the mean we computed earlier. We subtract off the mean and square the result.

After we compute that column of (x-M)^2 values, we add them up to get what is shown in the highlighted yellow cell at the bottom of the column.

That sum is approximately 0.04403076924

Next, we divide that over n-1 = 13-1 = 12

0.04403076924 /12 = 0.00366923077

That is the sample variance. Apply the square root to this to get the sample standard deviation. This is the point estimate of the population standard deviation. As the name implies, it works for samples that estimate population parameters.

sqrt(0.00366923077) = 0.06057417576822

This rounds to 0.061 which is the final answer.

5 0
2 years ago
Linda has 60 marbles. of which 30% are blue. How many blue marbles does linda have?
Elena-2011 [213]

30 because half of 30 is 60and 60 is like 100 cuz it is the whole so half of 60 is 30
6 0
3 years ago
Read 2 more answers
Plzzz help me i need to do this for homework thank you :)
Rashid [163]

Answer:

9

Step-by-step explanation:

5 0
3 years ago
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Write the equation of the line that passes through the given point and is perpendicular to the given line.
Semmy [17]

Answer:

the picture is blury

Step-by-step explanation:

3 0
3 years ago
Simplify:<br> (2-2x5-5)-4
Pavlova-9 [17]

Answer:

(2*5^2)+4/3^2-5

(2*25)+4/3^2-5

50+4/3^2-5

50+1.7-5

46.7

7 0
2 years ago
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