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Sergeeva-Olga [200]
2 years ago
5

Hello everyone can anyone please help me? I’ll give you brainlist

Mathematics
1 answer:
Rashid [163]2 years ago
3 0

Answer:

The answer for the first one is 3 times

the answer for the second one is 9

Step-by-step explanation:

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A 20mg sample of thorium-233 decays to 17mg after 5 min. determine the half life of thorium-233?
snow_tiger [21]
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3 years ago
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Ghella [55]

Answer:

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3 years ago
Divide 6⁄13 by 6⁄12 . <br><br> A. 1⁄12<br> B. 9⁄16<br> C. 12⁄13<br> D. 13⁄12
nadezda [96]

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5 0
2 years ago
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Write the equation <br> it passes through (0,-2) and is perpendicular to the graph of y=5x+7
romanna [79]

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6 0
2 years ago
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vovangra [49]

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