Every 5800 years, your element will decrease by 50%. So one way to represent that as an equation is:
f(t) = (1/2)^(t/5800)
So if t = 5800 years, our equation will be (1/2)^1 or 1/2 or 50%, so it checks out.
Answer:
768
Step-by-step explanation:
I hope you mean this, if you don't say so
-7 + x = 6x - 12
-7 +12 = 6x - x
5 = 5x
x = 1
hope this helps
Y = (7/8)x + 6, as the gradient is around 1 and the intercept is close to 6