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galben [10]
2 years ago
8

Can some pls help me with these two questions plss

Mathematics
1 answer:
tankabanditka [31]2 years ago
6 0
19. a^2+b^2=c^2
3^2+4^2=c^2
25=c^2
5=c
RS is 5 units

20. 3.14*6^2*10
3.14*36*10=1130.4

volume is 1130.4
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2x= 38.5

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I'm not sure where u got 12x but 2 x = 38.5:

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subtract 5 for 82

2x = 77

77 divided by 2 is 38.5

x = 38.5

hope this helps :)

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