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hammer [34]
3 years ago
13

Help please i’m confused

Mathematics
1 answer:
morpeh [17]3 years ago
7 0

Answer:

7/10 pi (radians)

Step-by-step explanation:

The formula for sector area is (angle * r^2)/2

140pi = angle*r^2/2

multiply both sides by 2

280pi = angle * r^2

r = 20 cm (substitute)

280pi = angle * (20)^2

280pi = angle * 400

Divide both sides by 400

7/10 pi = angle

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Step-by-step explanation:

6 0
3 years ago
Daniela recorded the low temperatures during the school day last week and this week. Her results are shown in the table below.
mixas84 [53]

Based on the information given about the temperature, Daniela made her error on step 3 because it says: "Find the ratio of the differences of the means compared to the mean absolute deviation.

<h3>How to illustrate the error?</h3>

From the information given, it van be seen that Daniela recorded the low temperatures during the school day last week and this week and her results are shown in the table.

Here, she didn't find the difference between the today and last week means. She just put the mean as a whole.

Therefore, Daniela made her error on step 3 because it says: "Find the ratio of the differences of the means compared to the mean absolute deviation. This was the error.

Learn more about error on:

brainly.com/question/10411345

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5 0
1 year ago
What does Markup meaning
riadik2000 [5.3K]

Answer:

the amount added to the cost price of goods to cover overhead and profit.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
The prodect of y and 4
Llana [10]

Answer:

Step-by-step explanation:

The product of y and 4 is 4y

4 0
3 years ago
What is the unit rate?
MaRussiya [10]

Two points

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Slope

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