Answer:
40.8 minutes
Step-by-step explanation:
Element X decays radioactively with a half life of 8 minutes. If there are 480 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 14 grams?
The formula to find how long it would take which is the time elapsed is given as:
t = t½ × In(Nt/No)/-In2
t = ?
t½ = 8 minutes
Nt = Amount after the time of decay = 14 grams
No = Original Amount of substances = 480 grams
t = 8 × In(14/480)/-In2
t = 40.796285388407 minutes
Approximately to the nearest tenth = 40.8 minutes
Therefore, it would take the element X, 40.8 minutes to decay to 14 grams
Answer:
x = 158/15
Step-by-step explanation:
It took me awhile to solve it, but I hope I got the correct answer and managed to help you ÷)
9a^4b^3 + 24a^3b^2 - 15a^2b
3a^2b(3a^2b^2 + 8ab - 5) <==
Fyi don’t ever press the links it’s so they can hack u LOL
Hello!
The angle that measures 82 and the angle that is x are supplementary meaning that they equal to 180°
We can subtract the 82 angle to find x
180 - 82 = 98
x is 98
Hope this helps!
