Answer:
y'(t) = k(700,000-y(t)) k>0 is the constant of proportionality
y(0) =0
Step-by-step explanation:
(a.) Formulate a differential equation and initial condition for y(t) = the number of people who have heard the news t days after it has happened.
If we suppose that news spreads through a city of fixed size of 700,000 people at a time rate proportional to the number of people who have not heard the news that means
<em>dy/dt = k(700,000-y(t)) </em>where k is some constant of proportionality.
Since no one has heard the news at first, we have
<em>y(0) = 0 (initial condition)
</em>
We can then state the initial value problem as
y'(t) = k(700,000-y(t))
y(0) =0
Answer:
The first and third answer I believe.
Step-by-step explanation:
The side with 3 can go over 1.5, since they are both at the same side. It will be equivalent to 4 over 2 because they are also the same side. (1st option)
Multiplying each side by 1/2, does result you to the final image.
3 multiplied by 1/2 is 1.5
4 multiplied by 2 is 2
Answer:
y = mx + b
Step-by-step explanation:
Use that form to find the slope.
Answer:
14.96
Step-by-step explanation:
1496mm *mm = 1496 * 1/10 cm * 1/10cm =1496/100 cm2
Answer:
He will work for 18 weeks.
Step-by-step explanation:
