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3 years ago

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What is the approximate circumference of a semicircle with a radius of 6 centimeters?18.8 centimeters37.7 centimeters75.4 centim

eters150.7 centimeters

1 answer:

Shkiper50 [21]3 years ago

8 0

hello :
the circumference of a semicircle : 2πr/2 =πr
p/2 = <span>πr =3.14(6) =18.8 cm
</span>

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strojnjashka [21]

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Vera_Pavlovna [14]

The top answer is the right answer

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3 years ago

Question 25 the sum of three numbers is 79 . the second number is 9 less than the first. the third number is 2 times the first.

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I believe the numbers are 22, 13, and 44.

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Below are survival times (in days) of 13 guinea pigs that were injected with a bacterial infection in a medical study:

tresset_1 [31]

Outliers are data that are relatively far from other data elements.

The dataset has an outlier and the outlier is 120

The dataset is given as:

91 83 84 79 91 93 95 97 97 120 101 105 98

Sort the dataset in ascending order

79 83 84 91 91 93 95 97 97 98 101 105 120

<h3>The lower quartile (Q1)</h3>

The Q1 is then calculated as:

$Q1 = \frac{N +1}{4}th$

So, we have:

$Q1 = \frac{13 +1}{4}th$

$Q1 = \frac{14}{4}th$

$Q1 = 3.5th$

This is the average of the 3rd and the 4th element

$Q1 = \frac{1}{2} \times (84 + 91)$

$Q1 = 87.5$

<h3>The upper quartile (Q3)</h3>

The Q3 is then calculated as:

$Q3 = 3 \times \frac{N +1}{4}th$

So, we have:

$Q3 = 3 \times \frac{13 +1}{4}th$

$Q3 = 3 \times 3.5th$

$Q3 = 10.5th$

This is the average of the 10th and the 11th element.

$Q_3 =\frac12 \times (98 + 101)$

$Q_3 =99.5$

<h3>The interquartile range (IQR)</h3>

The IQR is then calculated as:

$IQR = Q_3 -Q_1$

$IQR = 99.5 - 87.5$

$IQR = 12$

Also, we have:

$IQR(1.5) = 12 \times 1.5$

$IQR(1.5) = 18$

<h3>The outlier range</h3>

The lower and the upper outlier range are calculated as follows:

$Lower = Q_1 - IQR(1.5)$

$Lower = 87.5- 18$

$Lower = 69.5$

$Upper = Q_3 + IQR(1.5)$

$Upper = 99.5 + 18$

$Upper = 117.5$

120 is greater than 117.5.

Hence, the dataset has an outlier and the outlier is 120

Read more about outliers at:

brainly.com/question/9933184

6 0

2 years ago

Which of the following is 6x²/27x simplified?

qaws [65]

Hi, The Answer is:

2x/9

Steps:

Simpilfy the expression:

6x/27

Then reduce the fraction with 3:

2x/9

That's your answer have a good day.

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4 years ago

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