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Sergeeva-Olga [200]
3 years ago
11

Evaluate the arise tic series described: 12. 0,= 300, n = 25 (please help)

Mathematics
1 answer:
Tcecarenko [31]3 years ago
5 0
Go back to soccer tuve
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lord [1]

Answer:

The answer is "(27.030,29.770)"

Step-by-step explanation:

(\bar{x}) = 28.4

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(CI) = \bar{x}\pm z^*_{\frac{\alpha}{2}} \frac{\sigma}{\sqrt{n}}

z^*_{\frac{\alpha}{2}}\ for \ 89\%\ confidence = 1.598 \\\\\text{Using z table }\\\\ NORM.S.INV(1-\frac{(1-0.89)}{2})

CI = 28.4 \pm 1.598 \times  \frac{6}{\sqrt{49}}=(27.030,29.770)

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2 years ago
A submarine starts at the surface of the Pacific Ocean and descends 60 feet
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Answer:

360 feet

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2 years ago
Two vertical angles are adjacent?
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Two vertical angles are never adjacent. 
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7 0
3 years ago
Choose the best answer. The diagonals of a rectangle:
erastovalidia [21]

C.) Are the same length

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No matter how long the rectangle is the diagonals always will measure the same length. Think about two sides of a square, they have to equal the same length because if they were not the same then the shape wouldn't be a square.

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Write an expression for the sequence of operations described below.
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not sure if im right but this is my problem

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Step-by-step explanation:

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