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Evgen [1.6K]
3 years ago
7

8+7(4 to the second power-3)

Mathematics
2 answers:
Radda [10]3 years ago
6 0

Answer:57

Step-by-step explanation:

15+15+15+15=60-3=57

telo118 [61]3 years ago
3 0
The answer is 195. 8+7(16-3)=15(13)=195
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The diameter of a iron sphere is 8 cm. It is beaten and drawn into a wire with a diameter of 2 mm. Find the length of the wire.
djyliett [7]

Answer : The length of the wire is, 8533 cm

Step-by-step explanation :

As the iron sphere is beaten and drawn into a wire. That means, their volume will be equal.

Volume of iron sphere = Volume of cylindrical wire

The formula will be:

\frac{4}{3}\pi r_1^3=\pi r_2^2h

where,

r_1 = radius of sphere = \frac{Diamtere}{2}=\frac{8cm}{2}=4cm

r_2 = radius of cylindrical wire = \frac{Diamtere}{2}=\frac{2mm}{2}=1mm=0.1cm

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Now put all the given values in the above formula, we get:

\frac{4}{3}\pi r_1^3=\pi r_2^2h

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Therefore, the length of the wire is, 8533 cm

6 0
3 years ago
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