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notka56 [123]
3 years ago
9

If the ratio between the radii of the two spheres is 3:7, what is the ratio of their volumes?

Mathematics
1 answer:
elena-s [515]3 years ago
4 0
Given that the dilation factor or scale factor between the two spheres is equal to 3:7, the ratio between their volumes is calculated by cubing the numbers in the ratio. That is,
                     3³:7³
This operation will give us an answer of 27:343
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Approximately how much larger is the population of Pennsylvania than the population of Ohio? Pennsylvania's population is 12,604
nadya68 [22]
Answer= 1 million

For an approximation we don't use exact numbers. Seeing as Pennsylvania has a population of around 12.6 million and Ohio has a population near 11.5 million, there is about a difference of 1 million when comparing the populations.
6 0
3 years ago
Read 2 more answers
5 năm trước tổng số tuổi của hai mẹ con là 55 tuổi. Hiện nay tuổi con bằng 4/9 lần tuổi mẹ. Tính số tuổi của mẹ và tuổi con hiện
soldi70 [24.7K]

Answer:

12

Step-by-step explanation:

12

3 0
3 years ago
Could someone plz help I need the answers by tonight
Maksim231197 [3]

Answer:

7)  C) PQR ≈ TSR

8) B)  3

9) D) 102 ft

10) D) 21

11) C) 45

Step-by-step explanation:

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8) 2 * 6 = 12

so 4x = 12

      x = 3

9)

24/20 = x/85

x = 24 * 85 / 20

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10)

QT/35 = 24/40

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11)

ΔKLM ≈ΔXYZ

9/4 = 2.25

So

XY = 9 ---> given

YZ = 7 * 2.25 = 15.75

XZ = 9 * 2.25  = 20.25

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7 0
3 years ago
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lana66690 [7]

3x(2) + 2(2x - 20) = 16 - 2x(2)

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10x - 40 = 16 - 4x

14x - 40 = 16

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Hope this helps! ;)

8 0
3 years ago
Explain how the value of the 7 in 327,902 will change if you move it to the tens place
rjkz [21]
It will change from having a value of 7,000 to having a value of 70
6 0
3 years ago
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