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steposvetlana [31]
3 years ago
11

Ab cd and Ef intersect at p. If r=90, s=50, t=60, u= 45 and w=50, what is the value of x?

Chemistry
1 answer:
ziro4ka [17]3 years ago
3 0

Answer:

8

Explanation:

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 4.46 x10^9  years


 Explanation

Half life  is the time  taken for  the  radioactivity  of   a isotope  to fall  to half  its  original  value.

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Scientist use alternative ways to seek out if a fault is active which one isn't include​
dalvyx [7]

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Answer:

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