Answer:
18.05 g
Step-by-step explanation:
The multiplier of the initial quantity is ...
(1/2)^(t/1690)
so, for t=250, this becomes ...
(1/2)^(250/1690) ≈ 0.902545
Then the quantity remaining of the initial 20 g is ...
(20 g)(0.902545) ≈ 18.05 g
A line extending from the lower left to the upper right has a <em>positive</em> slope.
Given
Slope is 4
Y-intercept is 4
For the slope-intercept form of line i.e.
So, we can write