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olya-2409 [2.1K]
3 years ago
14

Find 7.4 times the difference between 87 and 24​

Mathematics
2 answers:
AysviL [449]3 years ago
8 0

Answer:

466.2

Step-by-step explanation:

musickatia [10]3 years ago
8 0

=(87-24)×7.4

=63×7.4

=466.2

<h2>hope it helps you ❣❣ </h2><h2>Mark me as brainliest</h2>
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Plutonium-240 decays according to the function L where o
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Answer:

\boxed{\textbf{1700 yr}}

Step-by-step explanation:

-\dfrac{\text{d}L}{\text{d}t} = kL\\\\\dfrac{dL}{L}=-kdt\\\\\ln L = -kt + C\\\text{At t = 0, L = L$_{0}$, so C = $\ln L_{0}$}\\\ln L = -kt + \ln L_{0}\\\ln L_{0} - \ln L = kt\\\\\ln \dfrac{L_{0}}{L} =kt

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Calculation:

\ln \dfrac{24}{20} =0.000 11t\\\\\ln 1.2 = 0.000 11t\\\\0.1823 = 0.000 11t\\\\t = \dfrac{0.1823}{0.000 11} = \textbf{1700 yr}\\\\\text{It will take } \boxed{\textbf{1700 yr}}\text{ for the polonium to decay to 20 g}

8 0
3 years ago
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3 years ago
HELP ASAPPPP!!!BRAINLEST WILL BE GIVEN!!! ​
liraira [26]

Answer:

30 days

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3 years ago
429 is 4 hundreds 29
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Step-by-step explanation:

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