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ZanzabumX [31]
3 years ago
8

Please send help my way please!!

Mathematics
2 answers:
ella [17]3 years ago
5 0

Answer:

area = 153.94

circumfrence = 43.98

Step-by-step explanation:

A=πr2=π·72≈153.93804

C=2πr=2·π·7≈43.9823

zubka84 [21]3 years ago
4 0

Answer:

14

Step-by-step explanation:

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Help please thank you
avanturin [10]

Answer:

150*2/3=100

take school size then multiply it by the ratio to get the amount of student who prefer such toothpaste.

Step-by-step explanation:

4 0
2 years ago
Circle towns limit form a perfectly circular shape that has a population of 20000 in the population density of 480 people per sq
Alex

Answer:

D =\frac{P}{\pi X^2}

And solving for the radius we got:

X = \sqrt{\frac{P}{\pi D}}

And replacing the data given we got:

X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km

And this value converted to meters is X = 87.40 m

Step-by-step explanation:

For this case we know the population size P = 20000 and we also know the population density D = 480 \frac{people}{km^2}

We can assume that the area is a circle. We also know that the formula for the population density is given by:

D= \frac{P}{A}

Where P represent the number of people and A the area. Since we are assuming a circle then the area is given by:

A = \pi X^2

With X the radius of the circle

And then the populationd density become:

D =\frac{P}{\pi X^2}

And solving for the radius we got:

X = \sqrt{\frac{P}{\pi D}}

And replacing the data given we got:

X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km

And this value converted to meters is X = 87.40 m

6 0
4 years ago
PLEASE HELP ME ASAP!!!!!!!<br><br><br> ty! :)
Allisa [31]

Answer:

Infinite Solutions

Step-by-step explanation:

The lines overlap each other.

6 0
3 years ago
Please answer -w- i really need help lol online school is kinda hard.
Yuliya22 [10]

Answer:

518.7

Step-by-step explanation:

8 0
3 years ago
What is the following sum4/5+2/5
Amiraneli [1.4K]

Answer:

6/5 or 1 1/5

Edit:

soo

4\sqrt{5} + 2\sqrt{5} = 6\sqrt{5}

since they both are being multipled to the square root of 5, you can just add them (i think)

Step-by-step explanation:

6 times the square root of 5

you add 4 and 2

4 0
2 years ago
Read 2 more answers
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