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svet-max [94.6K]
3 years ago
11

What's the first answer

Mathematics
1 answer:
andriy [413]3 years ago
4 0
5) -3 |. 6) 2 7) -6. |. 8) -18 9) 5. |. 10) 19 11) 14. |. 12) 42 13) 38. |. 14) 0
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Situation:
omeli [17]

The half life of the substance is 6.92 days.

<h3>What is the Half life  ?</h3>

Half life can be defined as the time required to reduce the concentration to half of its initial value.

Here the equation given is

\rm N = N_o e^{-kt}

The concentration will reduce to half therefore

\rm   N= \dfrac{N_o}{2}

so,

\rm 39/2 = 39  e^{- 0.1001 * t_{1/2}}

ln 0.5 = - 0.1001 * t(1/2)

-0.693 = -.1001 * t(1/2)

t(1/2) = 6.92 days.

Therefore the half life of the substance is 6.92 days.

To know more about Half Life

brainly.com/question/24710827

#SPJ1

4 0
1 year ago
Which expression is equal to 4?
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Answer:

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Step-by-step explanation:

When taking an esponent to an exponent multiply them

4 ^(1/3)^3 = 4^1 = 4

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The answer would be a 5% discount.
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1

Step-by-step explanation:

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