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2 years ago

PLEASE HELP! URGENT!

Mathematics

2 answers:

TEA [102]2 years ago

7 0

Answer:

C, I believe!

kolezko [41]2 years ago

6 0

C, should be the answer. I’m not a 100% sure

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3 years ago

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Step-by-step explanation:

This problem can be solved with the Radioactive Half Life Formula:

$A=A_{o}.2^{\frac{-t}{h}}$ (1)

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$\frac{11}{400}=2^{\frac{-t}{8 min}}$ (4)

Applying natural logarithm in both sides:

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2 years ago