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3 years ago

ILL GIVE YOU BRAINLIST !

Mathematics

2 answers:

vodka [1.7K]3 years ago

7 0

Answer:

Option (C)

Step-by-step explanation:

State Year entered into Union

Pennsylvania 1787

Indiana 1816

Florida 1845

Texas 1845

West Virginia 1863

Since North Carolina entered the Union 'x' years after Pennsylvania, expression that represents the the year North Carolina entered the Union will be = (1787 + x)

Therefore, Option (C) will be the answer.

jekas [21]3 years ago

3 0

Answer:

The answer is C

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16% of students scored higher than 80 on a recent normally distributed exam the standard deviation is 10 what is the mean

Crazy boy [7]

Answer:

70.06

Mean score = 70

Step-by-step explanation:

16% of students scored higher than 80 on a recent normally distributed exam the standard deviation is 10 what is the mean

For a normal distribution :

Zscore = (x - mean) / standard deviation

x = score

P(Z > 80) = 16% = 0.16 ; corresponding Zscore = 0.994 (Z probability calculator)

Therefore ;

0.994 = (80 - mean) / 10

0.994 * 10 = 80 - mean

9.94 = 80 - mean

Mean = 80 - 9.94

Mean = 70.06

Hence, the mean score = 70.06 = 70

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3 years ago

This means that if the length a = 2 then the length b = 3.236. in this case what is the length c

givi [52]

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3 years ago

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3 years ago

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andrey2020 [161]

Answer:

<h2>SOLUTION</h2>

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