Answer:
16.07 milligrams
Step-by-step explanation:
From the question,
Using the formula of radioactive decay,
R/R' = 2ᵃ/ᵇ..................... Equation 1
Where R = Original mass of the polonium-210, R' = Final mass of polonium-210 after decaying, a = Total disintegration time, b = half life of polonium-210.
Make R' the subject of the equation
R' = R/(2ᵃ/ᵇ)................ Equation 2
Given: R = 100 milligrams, a = 1 years = 365 days, b = 138.39 days
Substitute these values into equation 2
R' = 100/(2³⁶⁵⁰⁰/¹³⁸³⁹)
R' = 100/(6.222)
R' = 16.07 milligrams of plonium-210
Answer:
21!
9x2=18
18+3=21
Step-by-step explanation:
May I have brainliest I'm trying to level up!
</3 PureBeauty
Answer:
Step-by-step explanation:
the question does say that the amount of juice you an make, depends on the tomatoes soo 't' is the independent.. and 'a' the juice, is the dependent, which is the 2nd answer. Did you really not know.. or were you just unsure?
The answer is 1,4. Hope that helps.
Answer:
a₆ = 972
Step-by-step explanation:
Is it correct?
a₄ = 3a₃ = 3 × 36 = 108
a₅ = 3a₄ = 3 × 108 = 324
<u><em>a₆ = 3a₅ = 3 × 324 = 972</em></u>
