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Vanyuwa [196]
2 years ago
11

find the volume of the following figure round your answer to the nearest tenth if necessary and make sure to use pi

Mathematics
1 answer:
Vikki [24]2 years ago
4 0

Answer:

524cm^2

Step-by-step explanation:

Formula for Volume of sphere= 4/3 πr^2

We have,

r=5cm

Now,

Volume(v)=4/3 πr^2 = 4/3π 5^3= 4/3π 125 = 166.666666667π = 523.598775599

Rounding to the nearest tenth,

Volume=524cm^2

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MrRa [10]

Answer:

x = -1, y = 2 and z = 1

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The given system of equations are :

2x - y + 3z= -1  ....(1)

x + 2y - 4z = -1  ......(2)

y – 2z = 0  .....(3)

Equation (3) can be written as :

y = 2z

Use y = 2z in equation (2)

x + 2(2z) - 4z = -1

x + 4z - 4z = -1

x = -1

Put the value of x in equation (1) :

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Adding equation (3) and (4)

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