It takes 16,064 years for the 500g of radium to decay to 5g.
<h3>
How long will it take for 500g of radium to decay to 5g?</h3>
Here we have the decay equation:
Where Q₀ is the initial amount, and k is the decay constant.
We know that:
Q₀ = 500g
k = 0.00043
And we want to find the value of t such that Q(t) = 5g, so we need to solve:
Now we can apply the natural logarithm in both sides:
So it takes 16,064 years for the 500g of radium to decay to 5g.
If you want to learn more about decays:
brainly.com/question/7920039
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D). Is the correct answer!
<span>x2 + 2x – 8 = 0</span> <span>
(x + 4)(x – 2) = 0</span> <span>
x = –4</span><span> or </span><span>x = 2</span>
Answer:
x = 10 ft
Step-by-step explanation:
By Pythogorus theorem,
x^2 = 8^2 + 6^2
x^2 = 64 + 36
x^2 = 100
x = sqrt(100)
x = 10 ft
The answer is c ok this is C
Step-by-step explanation:
I hope it's correct.. And hopefully you understand those steps and also my horrible writing