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nevsk [136]
3 years ago
15

Please help this is urgent

Mathematics
2 answers:
fgiga [73]3 years ago
4 0
I'm assuming they want a fraction answer. for the cube it would be 1/5 and the coin would be 9/20. Hope this is right.<span />
Serggg [28]3 years ago
4 0
9/20 I did this test before im sorry I told you in the last minute
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8. The base of a circular cone has a diameter of 10 cm and an altitude of 10 cm. The cone is filled with water. A sphere is lowe
nataly862011 [7]

Answer:

The volume of water that remains on the cone is 523.6 cm³

Step-by-step explanation:

To solve this problem you have to keep in mind the formules that describes the volume of a cone and the volume of a sphere.

Volume of a cone = (πr²h)/3

Volume of a sphere = (4/3)πr³

So, if the base of the cone has a diameter of 10 cm, its radius is 5 cm. Its altitude is 10 cm. ⇒Volume = (πr²h)/3 ⇒ Volume = [π(5²)10) ⇒

          Volume = 785.4 cm³. This is the initial volume of water.

Now if the sphere fits in the cone and half of it remains out of the water, the other half is inside the cone. Estimating the volume of the sphere and dividing it by two, you find the volume of water that was displaced.

Volume of a sphere = (4/3)πr³, here the radius is the same of the base of the cone (5 cm).

⇒ Volume = (4/3)π(5³)  ⇒ Volume = 523.6 cm³ ⇒ The half of this volume is 261.8 cm³. This is the volume of water displaced.

⇒ The volume of water that remains on the cone is 523.6 cm³ (785.4 cm³- 261.8 cm³)

6 0
3 years ago
Write all the factors of 9 . Use commas to separate them.rtth
Rasek [7]

Answer:

1, 3, 9

Step-by-step explanation:

the nine can be divided by those three numbers and no more

5 0
3 years ago
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Parker mowed 15 lawns in 3 hours . What was his rate of mowing in lawns per hour ?
posledela

Answer:

5

Step-by-step explanation:

15÷3

8 0
3 years ago
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I am putting a lot of points on the line! Please help!!!!!!!!!
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Answer:

s > 118 2/3

Step-by-step explanation:

6 0
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Find the slope of (4,4) (-6-4) plz need this like in 20 minutes
monitta

Answer:

The slope is 0

Step-by-step explanation:

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