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aliya0001 [1]
2 years ago
12

Help please due soon

Mathematics
1 answer:
mestny [16]2 years ago
7 0
The think the answer is c
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Estimate the difference of the decimals below by rounding to the nearest whole number 42.706 - 4.423= ?
Aneli [31]
The answer would be 39
4 0
3 years ago
Geometry, plz help!
astra-53 [7]

Answer:

17. surface area ≈ 441.84

04π m² or  1387.38  m²

18. Ratio of volumes = 8/27

19. volume of the smaller solid = 339 yards³

Step-by-step explanation:

17 .

To find the surface area of the sphere we have to find the radius of the sphere first.

volume of a sphere = 4/3πr³

volume = 1548π m³

r = ?

volume of a sphere = 4/3πr³

1548π = 4/3 × π × r³

multiply both sides by 3/4

1548π × 3/4 = πr³

4644π/4 = πr³

1161π = πr³

divide both sides by π

r³ = 1161

cube root both sides

r = ∛1161

r = 10.5101942

r ≈ 10. 51

surface area of a sphere = 4πr²

surface area = 4 × π × 10.51²

surface area = 4 × 110.4601  × π

surface area = 441.8404π m²  

surface area = 441.8404 × 3.14 = 1387.378856  m² ≈ 1387.38 m²

18

If two figure or solid are similar with scale factor or ratio of x/y then the ratio of their volume is (x/y)³. If the ratio of of two similar prism is 2 : 3 the volume will be (2/3)³ = 8/27 .

19

If two solids are similar then the ratio of their surface area is the squared of the scale factor.

121/361 = (x/y)²

square root both sides

x/y = 11/19

If two solids are similar then the ratio of their volume is the cube of the scale factor.

(11/19)³ = a/1747

1331/6859  = a/1747

cross multiply

6859a = 2325257

divide both sides by 6859

a = 2325257/6859

a = 339.008164455

a ≈ 339 yards³

volume of the smaller solid ≈ 339 yards³

4 0
2 years ago
Which is not a representation of the equation y = 0.5x - 2?
Studentka2010 [4]

Answer:

D is incorrect so ur answer is D

8 0
2 years ago
How is taking away sandbags different from adding
elena-s [515]
Your limting the amount of sandbags you have if you take away and when your adding your adding more sandbags.
8 0
3 years ago
Please help me ................
Angelina_Jolie [31]

Answer: AAS

Step-by-step explanation:

8 0
3 years ago
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