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yan [13]
4 years ago
8

Find the unit rate 2.4 kilo in 3.75 minutes HELP!!!! thanks :) <3

Mathematics
1 answer:
Nezavi [6.7K]4 years ago
7 0

Answer:

hand battered chicken

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The population standard deviation for the temperature of beers found in Scooter's Tavern is 0.26 degrees. If we want to be 90% c
siniylev [52]

Answer:

19 beers must be sampled.

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 - 0.9}{2} = 0.05

Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.05 = 0.95, so Z = 1.645.

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.

The population standard deviation for the temperature of beers found in Scooter's Tavern is 0.26 degrees.

This means that \sigma = 0.26

If we want to be 90% confident that the sample mean beer temperature is within 0.1 degrees of the true mean temperature, how many beers must we sample?

This is n for which M = 0.1. So

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

0.1 = 1.645\frac{0.26}{\sqrt{n}}

0.1\sqrt{n} = 1.645*0.26

\sqrt{n} = \frac{1.645*0.26}{0.1}

(\sqrt{n})^2 = (\frac{1.645*0.26}{0.1})^2

n = 18.3

Rounding up:

19 beers must be sampled.

7 0
3 years ago
Find this expression in square form with process pls help me !!!!​
alekssr [168]

Answer:

(p -3q )(p -3q  )

Step-by-step explanation:

p'2 - 6pq + 9q'2

(p -3q )(p -3q  )

find two values that add to give 6 and multiply to 9

p x p =p'2

-3q x p = -3pq   -3 x pq = -3pq    ...... -3pq - 3pq = -6pq

-3q x - 3q = 9q'2

7 0
2 years ago
What's the property of 8x-1=-8
Ivanshal [37]

<u><em>x=-7/8 is the correct answer.</em></u> First you had to add by 1 from both sides of equation, and it gave us, 8x-1+1=-8+1. And then simplify, and it gave us, 8x=-7. You can also divide by 8 from both sides of equation, and it gave us, \frac{8x}{8}=\frac{-7}{8}. And finally simplify, and it gave us the answer is x=-7/8 is the correct answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

8 0
4 years ago
I cant remember plz help me
anygoal [31]

Answer:

I believe the answer is B. Angle-Angle-Side

Step-by-step explanation:

3 0
3 years ago
Which of the following measures of central tendency describe the distribution of a data set?
kicyunya [14]

Answer:

Mean, Median, and Mode

Step-by-step explanation:These measures indicate where most values in a distribution fall and are also referred to as the central location of a distribution.

3 0
4 years ago
Read 2 more answers
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