3 years ago

Why is it helpful to find the mean of the data set?

1 answer:

7 0

The mean of a set of data is the average, so when writing a conclusion or justifying a solution, instead of listing all your data you can say "the average of the data collected was _____"

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Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations).

masya89 [10]

Answer:

$40\pi \ m^{2}$

Step-by-step explanation:

we know that

The area of a circle is equal to

$A=\pi r^{2}$

In this problem we have

$r=10\ m$

Substitute and find the area

$A=\pi (10)^{2}=100 \pi\ m^{2}$

Remember that

$360\°$ subtends the area of complete circle

by proportion

Find the area of the shaded regions

The central angle of the shaded regions is equal to $2*72\°=144\°$

$\frac{100\pi }{360} \frac{m^{2}}{degrees} =\frac{x }{144} \frac{m^{2}}{degrees} \\ \\x=144*100\pi /360\\ \\ x=40\pi \ m^{2}$

6 0

3 years ago

How do you solve this

brilliants [131]

First, ask somebody else like your teacher, also use your brain

5 0

3 years ago

. In a study about the relationship between the age of a person and the preference for digital vs analog watches, which of the f

Daniel [21]

Answer:

B and the first d and second one.

Step-by-step explanation:

The age is a big factor and b can showing the preference per age

6 0

3 years ago

What are the next three numbers in this pattern 1,2,3,5,8

stepladder [879]

13, 21, 34 are the next three numbers

7 0

3 years ago

Read 2 more answers

State the radius of the circle of the equation

Eva8 [605]

Answer:

radius = √5 = 2.24 to nearest hundredth.

Step-by-step explanation:

(x + 3)^2 + (y + 3)^2 = 5 comparing with the standard form

(x - h)^2 + (y - k)^2 = r^2

-h = 2 so h = -3, -k = 3 so k = -3.

r^2 = 5 so r = √5.

5 0

3 years ago