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Daniel [21]
3 years ago
15

If the circumference of two circle are in the ratio 2:3, then their areas are in the ratio of

Mathematics
1 answer:
maxonik [38]3 years ago
6 0

Answer:

4:9

Step-by-step explanation:

To take the scale factor from distance to area, we square it

2:3  distance

Square each term

2^2 : 3^2  area

4:9

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Please give answer for this
andrew-mc [135]

Answer:

100 square cm

Step-by-step explanation:

Area of figure 1 = l *b = 10 *7 = 70 square cm

Area of figure 2  =  6* 5 = 30 square cm

Area of shape = 70 + 30 = 100 square cm

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2 years ago
What is the value of the expression (9+15) ÷ 3+2?
Lyrx [107]
The anwser is 4.4 because you add 9+15 then add 3+2 then divied them both and thats your anwser

6 0
2 years ago
Read 2 more answers
A region with a 5-mile radius has a population density of about 3100 people per square mile. Find the number of people who live
Gwar [14]

Answer:

243,000 people

Step-by-step explanation:

First, what we need to do is to calculate the area of the region using the 5-mile radius

Mathematically, we can calculate this as the area of a circle

Area = pi * r^2

Our r here is 5 miles

Area = pi * 5^2 = pi * 25 = 78.54 square miles

Now to get the population, we know that per square mile we have 3,100.

Hence per 78.54 square mile, we have 78.54 * 3100 = 243,273 people

To the nearest thousand, 243,000

4 0
3 years ago
can julia cut a triangular patch for a quilt that has side lengths 1 1/2 inches, 2 inches, and 4 inches? i need the explanation
mixer [17]
Yes. A triangle with three sides given can be cut out.
3 0
3 years ago
8.2<br> 5. In a '70% off' sale, a hat was £33.60.<br> Work out the original price.
Aleks [24]

100% - 70% = 30%

30% of what = £33.60?

Let p = original price

0.30p = 33.60

p = 33.60 ÷ 0.30

p = £112

3 0
3 years ago
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