Please help!!!!!!!!!!!!!!

Mathematics

2 answers:

vfiekz [6]3 years ago

8 0

Answer:

Step-by-step explanation:

A p - 4 is the answer to your question

Katyanochek1 [597]3 years ago

3 0

Answer:

Correct option is (A)i.e., p - 4

Because no. of plates on table are 'p` and 4 are saved for desserts.

Then remaining plates will bd calculated by subtracting them i.e., p-4

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Answer:

The answer is below

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$\frac{dQ}{dx}=3-\frac{2Q}{3+x}\\ \\\frac{dQ}{dx}+\frac{2Q}{3+x}=3\\\\let\ u'=\frac{2u}{3+x}\\\\\frac{u'}{u}=\frac{2Q}{3+x}\\\\ln(u)=2ln(3+x)\\\\u=(3+x)^2\\\\(3+x)^2Q]'=3(3+x)^2\\\\(3+x)^2Q=(3+x)^3+c\\\\Q(0)=11\\\\(3+0)^2(11)=(3+0)^3+c\\\\x=72\\\\Q=x+3+\frac{72}{(x+3)^2}\\ \\Q(3)=3+3+\frac{72}{(3+3)^2}=8\ mg$