We have

and

so the equation is indeed exact. So we want to find a function
such that


Integrating both sides of the first equation wrt
gives

Differentiating both sides wrt
gives

So we have

or

Answer:
7/1
Step-by-step explanation:
Answer:4 or 3.70
Step-by-step explanation:
well if c = 5 you should 1st do 4 x 5= 20 + 36 and that equals 56
now do (1+2)=3 x 4 =12 + 3 =15
now not sure what ur answers are but i got either 4 or 3.70
Good Luck!!!
Answer:
$15
Step-by-step explanation:
Assuming all the payments are the same, simply divide the total with the amount of payments:
45/3 = 15
$15 each payment.
~
Answer:
27/40
Step-by-step explanation: