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LuckyWell [14K]
2 years ago
15

Write an addition sentence that helps you solve 15-9.​

Mathematics
1 answer:
Lemur [1.5K]2 years ago
8 0

Answer:

I have 15 cookies and my brother ate 9 now I have 6 cookies.

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C

Step-by-step explanation:

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=2.5

so

f=2 1/2c

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A skydiver was at an elevation of 17,833 feet. One minute later, she was at 4,297 feet. Find her average change in elevation per
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On day two of a study on body temperatures, 106 temperatures were taken. Suppose that we only have the first 10 temperatures to
Hitman42 [59]

Answer:

The 95% confidence interval = (98.225, 98.655)

Step-by-step explanation:

The formula for Confidence Interval =

Mean ± z × standard deviation/√n

Where Mean = 98.44°F

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n = number of samples is 10

Because our number if samples is small, we use the t score confidence interval formula

Mean ± t × standard deviation/√n

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= 10 - 1 = 9

We find the t score of 95% confidence interval and degrees of freedom 9

= 2.262

Hence,

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Confidence Interval

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= 98.654592162

≈ 98.655

The 95% confidence interval = (98.225, 98.655)

5 0
3 years ago
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