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Nutka1998 [239]
4 years ago
15

Helppp plzzzzzzzzzzzzzzzzzzzzz

Mathematics
1 answer:
Katen [24]4 years ago
6 0

Answer:

slope= <u>y²-y¹</u>

x²-x¹

-<u>20--20</u>

20-0

<u>-</u><u>2</u><u>0</u><u>+</u><u>2</u><u>0</u>

20

<u>0</u>

20

=0

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Pls help me asap...!!
ruslelena [56]

Answer:

m(<M) > m(<N)

Step-by-step explanation:

3 0
3 years ago
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We draw a random sample of size 36 from a population with standard deviation 3.5. If the sample mean is 27, what is a 95% confid
inessss [21]

Answer:

The 95% confidence interval for the population mean is between 25.86 and 28.14.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96\frac{3.5}{\sqrt{36}} = 1.14

The lower end of the interval is the sample mean subtracted by M. So it is 27 - 1.14 = 25.86

The upper end of the interval is the sample mean added to M. So it is 27 + 1.14 = 28.14

The 95% confidence interval for the population mean is between 25.86 and 28.14.

3 0
3 years ago
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Find the slope between these 2 points. (5, 8) and (7, 11)
Taya2010 [7]

Answer:

1.5

Step-by-step explanation:

6 0
3 years ago
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Please help sadmasdasfasfsag
Vesnalui [34]

Answer: 1- subtract 25 from 62, that’s your x

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Step-by-step explanation:

7 0
3 years ago
I NEED HELP ASAP write an equivalent unit rate to running 5/4 a mile in 9 minutes
svetlana [45]

Answer:

The unit rate is 0. 14 miles per minute.

Hence, option a is correct.

Step-by-step explanation:

Given

Running of 5/4 a mile in 9 minutes.

To determine

The unit rate = ?

Given that the running 5/4 a mile in 9 minutes.

i.e.

Miles covered in 9 minutes = 5/4 or 1.25 miles

Miles covered in 1 minute = 1.25/9

                                           = 0. 14 miles per minute

Therefore, we conclude that:

The unit rate is 0. 14 miles per minute.

Hence, option a is correct.

6 0
3 years ago
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