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Bezzdna [24]
3 years ago
14

A bowl shaped like a sphere has a radius of 15 cm. Which is closest to the amount of air needed to fill the ball?

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
6 0
The formula for a sphere is 4/3*pi*r^3 so we replace 15 with 5 since 15 is the radius and after multiplying everything you get 14,137.17 which can be rounded the 14,130 which is B
SIZIF [17.4K]3 years ago
4 0
I believe it is D not quite sure 
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Find the volume and surface area of the prism below
Nata [24]

Answer:

a) The volume of the prism is 660 mm³

b) The surface area of the prism is 514 mm²

Step-by-step explanation:

The given prism for which we are to find the volume and the surface area shows the dimensions of the sides

a) To find the volume, we can consider the prism as a composite figure as follows;

The topmost cuboid with dimensions (15 - 2×3) mm, 3 mm, and 9 mm

Therefore, the volume of the topmost cuboid, V₁, is given as follows;

V₁ = 5 mm × 3 mm × 9 mm = 135 mm³

The volume of the cuboid on which the top cuboid rest, V₂, is given as follows;

V₂ = 15 mm × 5 mm × 7 mm = 525 mm³

The volume of the prism, V = V₁ + V₂

Therefore, we have;

V =135 mm³ + 525 mm³ = 660 mm³

The volume of the prism, V = 660 mm³

b) The surface area of the prism is given as follows;

The surface area of the top cuboid, SA₁, is given as follows;

SA₁ = 9 mm × 5 mm + 2 × 3 mm × 9 mm + 2 × 3 mm × 5 mm = 129 mm²

The surface area of the larger cuboid, SA₂, is given as follows;

SA₂ = 2 × 15 mm × 7 mm + 2 × 5 mm × 7 mm + 2 × 3 mm × 5 mm + 15 mm × 5 mm = 385 mm²

The surface area of the prism, SA = SA₁ + SA₂

∴ The surface area of the prism, SA = 129 mm² + 385 mm² = 514 mm²

4 0
3 years ago
TOAD is a quadrilateral with vertices (9, 10), (18, 10), (14, 5), and (5, 5), respectively. The diagonals intersect at Point S.
klasskru [66]
A. parallelogram
B. I believe it'd be around (11.2,7.5)
C. √(10-5)^2+(9-4)^2 = 21, so yes they bisect
5 0
3 years ago
Read 2 more answers
Giving brainlist to whoever answers
stealth61 [152]

Answer:

62.4 cm³

Step-by-step explanation:

Hope this helps :)

7 0
3 years ago
A large western state consists of 3390 million acres of land. Approximately 92% of this land is federally owned. Find the number
Dmitry_Shevchenko [17]

Answer: 31.2

Step-by-step explanation: 100 - 92 = 8%

3390 acres ---- 100%

x acres ------ 8%

4 0
3 years ago
Find the square root of 196 with process.​
blsea [12.9K]

Answer:

The square root of 196 is 14

Step-by-step explanation:

Prime factorization of 196:

  • 2² × 7²

Prime factors of 196 in pairs:

  • (2 × 2) × (7 × 7)

Now square root of 196:

  • √196 = √(2 × 2) × (7 × 7)
  • √196 = √(2 × 7)²
  • √196 = (2 × 7)
  • = 14

Thus, The square root of 196 is 14

<u>-TheUnknownScientist</u><u> 72</u>

3 0
3 years ago
Read 2 more answers
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