Answer:
b
Step-by-step explanation:
Answer:

Step-by-step explanation:
This is a separable equation. First divide both sides by y:

Integrate both sides:


Solve for y taking exp to both sides:

Where
is an arbitrary constant
Evaluating the initial condition:


Finally, replacing
in the differential equation solution:

I don’t think you posted a picture along with this so I can’t answer
Answer:
$978
Step-by-step explanation:
Given:
- y = amount of profit
- x = selling price of each widget

To find the maximum amount of profit, differentiate the equation, set it to zero and solve for x. Substitute found value of x into the original equation.
<u>Differentiate equation</u>


<u>Set differentiated equation to zero and solve for x</u>:




<u>Maximum profit</u>
Substitute x = 39 into the equation:

Therefore, max profit is $978