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vladimir1956 [14]
3 years ago
11

I need help on this onee plizzzz

Mathematics
2 answers:
nika2105 [10]3 years ago
4 0
(45+20)/(42+45+20+32)
65/139
<span>46.762589928%</span>
S_A_V [24]3 years ago
4 0
All you have to do is divide

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A heavy metal sphere
GaryK [48]

Answer: the height of the water after the sphere is placed in

it is 33.33 cm

Step-by-step explanation:

The cylinder is called a right circular cylinder because its height make a right angle with its base. The formula for determining the volume of the cylinder is expressed as

Volume = πr^2h

Where

π is a constant whose value is 3.14

r represents the radius of the cylinder.

h represents the height of the cylinder.

From the information given,

r = 10 cm

h = height of water in the cylinder = 20 cm

Volume of water in the cylinder before the sphere was placed in it would be

V = 3.14 × 10^2 × 20 = 6280 cm^3

The formula for determining the volume of the sphere is expressed as

Volume = 4/3 πr^3

V = 4/3 × 3.14 × 10^3 = 4186.67cm^3

Total volume of the sphere and the cylinder = 6280 + 4186.67 = 10466.67 cm^2

To determine the new height of the water,

10466.67 = 3.14 × 10^2× h

h = 10466.67/314 = 33.33 cm

7 0
3 years ago
About 2% of the students at a college with a population of 9,000 students have significant vision impairments. A polling organiz
sammy [17]

Answer:

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10% of 9,000= 900 students

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2 years ago
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Step-by-step explanation:

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Alexeev081 [22]

Answer:

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