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Mashutka [201]
3 years ago
5

64 PTS!!!!!!

Mathematics
2 answers:
vfiekz [6]3 years ago
5 0

Uh... wheres the problem? Total would be 30 inches...

Whitepunk [10]3 years ago
3 0

Your answer would be 341 cubic inches

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Answer:

C. -7

Step-by-step explanation:

See the picture for steps :)

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2 years ago
The pH of a solution is measured eight times by one operator using the same instrument. She obtains the following data: 7.15, 7.
Nikolay [14]

Answer:

(a)7.185

(b)0.000371

(c) 0.019

(d)Sample variance and Sample standard deviation

Step-by-step explanation:

We are given the following sample data.

7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.17, 7.18.

(a) Calculate the sample mean. Round your answer to 3 decimal places.

The formula for sample mean =

Sum of terms/Number of terms

= 7.15 + 7.20+ 7.18+7.19+7.21+7.20+7.17+ 7.18/8

= 57.48/8

= 7.185

(b) Calculate the sample variance. Round your answer to 6 decimal places.

The formula for sample Variance =

(x - mean)²/n - 1

n = 8

Sample variance = (7.15 - 7.185)² + (7.20-

7.185)²+ (7.18 -7.185)² + (7.19 -7.185)² + (7.21 - 7.185)² + (7.20 - 7.185)² + (7.17 - 7.185)² + (7.18 - 7.185)² /8 - 1

= 0.001225 + 0.000225+ 0.000025+ 0.000025 + 0.000625 + 0.000225 + 0.000225 + 0.000025/7

= 0.0026/7

= 0.000371428571

Approximately to 6 decimal places = 0.000371

(c) Calculate the sample standard deviation. Round your answer to 3 decimal places.

The formula for Sample Standard Deviation = √Sample variance

= √0.000371428571

= 0.01927248223

To 3 decimal places = 0.019

(d) Which of the following are potential major sources of variability in the experiment

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Sample standard deviation

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3 years ago
A recipe that makes 20 cookies calls for 2 cups of chocolate chips and 1 cup of chopped nuts. How many cups of chocolate chips a
dangina [55]

Answer:

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Step-by-step explanation:

3 0
2 years ago
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PLEASE HELP ASAP!! You used your new smart watch to record your heart rate every morning for 15 days. Select the dot plot that r
Artyom0805 [142]

The dot-plot for the data is sketched at the end of this answer.

--------------------------

  • The dot plot shows the <u>number of times each measure appears in the data-set.</u>

<u />

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  • 74 appears once, thus it is 1 in the dot-plot.
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The sketch is given at the end of this answer.

A similar problem is given at brainly.com/question/24908406

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Cho hàm số 2 2 3 1 2 ( )
Nesterboy [21]

Answer:

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Step-by-step explanation:

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