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Murljashka [212]
3 years ago
10

ILL BRAINLIEST YOU AND GIVE YOU 10 extra points

Mathematics
1 answer:
Blababa [14]3 years ago
7 0

Answer:

A

Step-by-step explanation:

Side A which is 4 is an angle of 41.40

Side B which is 5 is an angle of 55.7

Side C which is 6 is an angle of 82.8

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The most recent poll of 50 randomly-selected members of a school club with a total of 80 members showed that 38 are planning to
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Answer with Explanation:

Total number of members in School Club = 80 members

Number of member randomly Selected,that is sample size used  (P) = 50 members

Number of members who are planning to vote for Talia = 38 members

Z Score for 95% confidence interval =1.96

it is given that Margin of Error ,E,of the poll using a 95% confidence interval=12%

E=\frac{Z*\sigma}{\sqrt{P}}\\\\ \frac{12}{100}=\frac{1.96 * \sigma}{\sqrt{50}}\\\\ \sigma=4.32890

Standard Deviation=4.3 (approx)

→95% confidence level for students who are planning to vote for Talia as president of the club lie between → 38 + 4.3 = 42.3 to 38 -4.3=33.7.

→So, members which will vote for Talia as president of the club lies between minimum of 33 members and maximum of 42 members.

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Step-by-step explanation:

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John collected 150 nickels and dimes. He has 30 more nickels than dimes. How many of each does he have
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Answer:

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