Mathematics, 02.05.2022 03:40, lele12319
Beryllium-li decomposes into boron-li with a half-life of
13.8 seconds. How long will it take 2400 g of beryllium-il
to decompose into 75 g of beryllium-il? (3 marks)
Answers: 1
![\log\left( \cfrac{1}{32} \right)=\log\left[ \left( \frac{1}{2} \right)^{\frac{1}{13.8} t} \right]\implies \log\left( \cfrac{1}{32} \right)=t\log\left[ \left( \frac{1}{2} \right)^{\frac{1}{13.8}} \right] \\\\\\ \cfrac{\log\left( \frac{1}{32} \right)}{\log\left[ \left( \frac{1}{2} \right)^{\frac{1}{13.8}} \right]}=t\implies \cfrac{\log\left( \frac{1}{32} \right)}{\log\left[ \sqrt[13.8]{\frac{1}{2}} \ \right]}=t\implies 69\approx t](/tpl/images/2751/4491/5d9fb.png)
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 14:30, devinblitz4363
Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?
Answers: 1
Mathematics, 21.06.2019 17:00, Niyah3406
When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?
Answers: 2
Mathematics, 21.06.2019 17:30, Lovergirl13
Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?
Answers: 3
Mathematics, 21.06.2019 20:30, ElegantEmerald
A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.
Answers: 3
Do you know the correct answer?
Beryllium-li decomposes into boron-li with a half-life of
13.8 seconds. How long will it take 2400...
Questions in other subjects:
Spanish, 14.08.2021 06:50
Mathematics, 14.08.2021 06:50
Chemistry, 14.08.2021 06:50
