Answer: 277 units^2
Step-by-step explanation:
The amount of strontium that will remain after 40 hours is 5 g
<h3>How to determine the number of half-lives </h3>
- Half-life (t½) = 10 hours
- Time (t) = 40 hours
- Number of half-lives (n) =?
n = t / t½
n = 40 / 10
n = 4
<h3>How to determine the amount remaining </h3>
- Original amount (N₀) = 80 g
- Number of half-lives (n) = 4
N = N₀ / 2ⁿ
N = 80 / 2⁴
N = 80 / 16
N = 5 g
Learn more about half life:
brainly.com/question/26374513
7.5, 6.5 also try searching midpoint formula with what u have it’s pretty basic math
Answer:
Step-by-step explanation:
Slope m = =