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katovenus [111]
3 years ago
7

Evaluate (4.6)² using (a+b)²=a²+b²+2ab

Mathematics
1 answer:
Kruka [31]3 years ago
6 0

(4.6)²

= (4+ 0.6)²

<u>Using identity</u>–

(4+ 0.6)²

= 4² + 2× 4 ×0.6 +(0.6)²

=16 + 4.8 + 0.36

= 21.16

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A sample of 16 items from population 1 has a sample variance 5.8 and a sample of 21 items from population 2 has a sample varianc
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Answer:

Reject the null hypothesis.

Step-by-step explanation:

n1 = 16

n2 = 21

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S.V2 = 2.4

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H_{a} = Population Variance 1 >  Population Variance 2

Test statistic value = 5.8 / 2.4 = 2.417

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we reject the null hypothesis as the critical value is greater than the test statistic.

3 0
4 years ago
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6 0
4 years ago
Read 2 more answers
How do you convert powers to the same base if the bases don't have common factors?
Yuri [45]

Answer:

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Step-by-step explanation:

Use the rule of exponents ...

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_____

If you want to get more sophisticated than that, logarithms can get involved.

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8 0
3 years ago
Select the correct answer.
AleksAgata [21]
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3 0
2 years ago
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Answer:

its the top right answer choice

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Step-by-step explanation:

its the top right answer choice

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5 0
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