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Sauron [17]
3 years ago
6

Thanks in advance for any help provided to this question!

Mathematics
1 answer:
dangina [55]3 years ago
4 0

Answer:

A little over 31hours

Step-by-step explanation:

Use simple proportion

58miles = 1hr

1805miles = ?

(1805x1)/58 = 31.12hrs

Since the question asks you for an estimation, it should be fine to say a little over 31hours but do show full working and the accurate answer

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A sample of 100 footballs showed an average air pressure of 13 psi. The standard deviation of the population is known to be .25
Vladimir79 [104]

Answer:

0.025 is the standard error of mean.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 100

Sample mean = 13 psi

Population standard deviation = 0.25 psi

We have to find the standard error of the mean.

Formula:

Standard error =

\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.25}{\sqrt{100}} = \dfrac{0.25}{10} = 0.025

0.025 is the standard error of mean.

7 0
3 years ago
Find the slope of the line passing through the points<br> (-3. 7) and (2. -6).
Oksana_A [137]

Answer:

( 3 , 7 )

Step-by-step explanation:

maybe this will help you

5 0
2 years ago
How many of these equations have the solution 2 = 12?
tino4ka555 [31]

Step-by-step explanation

i don't understand option B

3 0
3 years ago
Brainles app doesn’t nothing to help me
castortr0y [4]

Answer:

true but can u help me or u can go to questioncove its better then branily but can u help me pls

Step-by-step explanation:

3 0
3 years ago
Im not sure if there right or not
alina1380 [7]
They are both correct.
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