Solve the Following Question.(4 Marks)

Question 14 Marks

Solve the following: : The cost of producing $x$ articles is given by $C=x^2+15 x+81$. Find the average cost and marginal cost functions. Find the marginal cost when $x=10$. Find $x$ for which the marginal cost equals the average cost.

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Question 24 Marks

Solve the following: : If the total cost function is given by $C=5 x^3+2 x^2+1$; find the average cost and the marginal cost when $x=4$.

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Question 34 Marks

Solve the following examples: : The demand function is given as $P=175+9 D+25 D^2$. Find the revenue, average revenue, and marginal revenue when demand is 10 .

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Question 44 Marks

Solve the following examples: : If the total cost function is given by; $C=5 x^3+7 x^2+7$; find the average cost and the marginal cost when $x=4$.

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Question 54 Marks

Find the derivatives of the following functions by the first principle : \begin{equation}
\frac{x-1}{2 x+7}
\end{equation}

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Question 64 Marks

Find the derivatives of the following functions by the first principle : \begin{equation}
\mathrm{x} \sqrt{\mathrm{x}}
\end{equation}

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Maths (commerce) Solve the Following Question.(4 Marks)

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