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Scilla [17]
2 years ago
15

Which statement describes the transformation that would map triangle M to triangle N on this grid

Mathematics
1 answer:
wariber [46]2 years ago
8 0

Answer:

i believe the answer would be B

Step-by-step explanation:

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The average natural gas bill for a random sample of 21 homes in the 19808 zip code during the month of February was $311.90 with
Serhud [2]

Answer:

The 90% confidence interval for the true mean natural gas bill for homes in the 19808 zip code area in February is between $292.48 and $331.32

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 21 - 1 = 20

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 20 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.7247

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.7247\frac{51.60}{\sqrt{21}} = 19.42

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 311.9 - 19.42 = $292.48

The upper end of the interval is the sample mean added to M. So it is 311.9 + 19.42 = $331.32

The 90% confidence interval for the true mean natural gas bill for homes in the 19808 zip code area in February is between $292.48 and $331.32

3 0
3 years ago
What is the value of log5 125 ? 3 5 15 25
Rom4ik [11]
3.because I found it. hahaha
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3 years ago
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(-5x^6+7x+1)-(8x^2+x-10)<br><br> Algebra 1 subtracting polynomials please help
BaLLatris [955]

Answer:

-5x^6-8x^2+6x+11

Step-by-step explanation:

(-5x^6+7x+1)-(8x^2+x-10)

Remove parentheses

-5x^6+7x+1-(8x^2+x-10)

-(8x^2+x-10)=-8x^2-x+10

-5x^6+7x+1-8x^2-x+10

Simplify

-5x^6-8x^2+6x+11

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3 years ago
Find the lateral surface area<br><br> Total surface area
VMariaS [17]

Answer:

=2.1 ×8.4×4

=70.56

kkbj

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3 years ago
Why are the triangles congruent? (Need ASAP 15points)
MAVERICK [17]

Answer:

Same sides

Step-by-step explanation:

When the sides are the same then the triangles are congruent. because they all have exactly the same sides. because the two triangles do not have exactly the same sides.

8 0
3 years ago
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