3 years ago

I need a bit of help pls.

Mathematics

1 answer:

Gnesinka [82]3 years ago

6 0

Answer:

#1. 150, #2. 650, #3. 2 PM to 4 PM #4. 8AM to 4PM (8 hours) #5. the frequency of weight in pounds #6. 22 cats

#7. 1 - 40 pounds #8. 11 - 20 pounds

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What is the Least common multiple of the pair of polynomials <br><br> 2x^2 - 18 and x + 3

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Curium-243 has a half-life of 28.5 days. In a sample of 5.6 grams of curium-243, how many grams will remain after 12 days?

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Answer:

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Step-by-step explanation:

we can use formula

$P(t)=P_0(\frac{1}{2})^{\frac{t}{h} }$

where

h is half life time

t is time in days

Po is initial quantity

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we are given

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$h=28.5$

In a sample of 5.6 grams of curium-243

so,

$P_0=5.6$

now, we can plug values

$P(t)=5.6(\frac{1}{2})^{\frac{t}{28.5} }$

now, we can plug t=12

$P(12)=5.6(\frac{1}{2})^{\frac{12}{28.5} }$

$P(12)=4.18253$

So,

The amount will remain after 12 days is 4.18 g

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