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Lady bird [3.3K]
3 years ago
14

If the radius of the small circle is 1/3 the radius of the big circle ,how do their areas compare

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
6 0

Answer:

The big circle has 9 times the area of the smaller circle.

Step-by-step explanation:

We can set up a proportion, where r is the radius of the big circle. That means the smaller circle would have a radius of r/3. By the area formula for a circle we know that A=πr², so the radius for both would be squared, which gives us r² for the big one and r²/9 for the smaller one. It then becomes clear that the ratio between the two areas is 9 times.

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1109,1116,1123 what’s next
marta [7]

Answer:

C. 1130

Step-by-step explanation:

The numbers are going up by 7.

4 0
3 years ago
Read 2 more answers
Find four consecutive integers such that 8 times the sum of the first and the third is 40 greater than 10 times the fourth
tatuchka [14]

All four consecutive integers will be 9, 10, 11, and 12 and can be found out by high common sense.

<h3>What is the pattern?</h3>

A pattern is a specific arrangement of numbers or any term which will follow a specific code or hint.

For example 2,4,6,8 in this, the difference between any two-term is only 2 and this will be its specific pattern.

Given that,

8 times the sum of the first and the third  =  8( 1st + 3rd)

40 greater than 10 times the fourth = 40 + 10(4th)

So,

8( 1st + 3rd) = 40 + 10(4th)

Now if we look right and side then it will come out as any number with the unit placed as 0.

So it means on the left side also the unit place must be 0.

By thinking of  1st + 3rd = 10 /20 because at 45 it will be 40 which is not equal to the right-hand side.

Now by hit and trial method, we need to guess it 20 = 9 + 11

Then

8(9 + 11) = 40 + 10(12)

One equation can never give us three unknowns hence it will be the correct way.

Hence so the four consecutive integers will be 9, 10, 11, and 12.

For more information about the pattern

brainly.com/question/14013716

#SPJ1

6 0
2 years ago
Find the dimensions of a rectangle whose perimeter is 42 m and whose area is 104 m squared
julia-pushkina [17]
P=42 m
1/2 of P=21
1/2 of P= l+w
21=13+8
A=13×8
A=104 m^2. As a result, the length is 13 m, and the width is 8 m. Hope it help!
6 0
3 years ago
-42 - 10=-52 true false open?
kolbaska11 [484]
The answer is true because -42+10 is -52
5 0
3 years ago
Read 2 more answers
If I buy a computer for 36 dollars with a coupon for 25% off. How much would it have cost without the coupon?
baherus [9]

Step-By-Step Explanation:

36 Dollars with the coupon

Without= 36 / 25% = 144

144 dollars is the original price

5 0
4 years ago
Read 2 more answers
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