The total revenue received from the sale of $x$ units is given by $R (x) = 10 x^{2} + 20 x + 1500$ . The marginal revenue, when $x = 2015$ , is _______

4032

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40320

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403

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40300

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Solution

The correct option is D $40320$
$R (x) = 10 x^{2} + 20 x + 1500$
$∴ \frac{d R}{d x} = 20 x + 20$
${(\frac{d R}{d x})}_{x = 2015} = 20 (2015) + 20 = 20 (2015 + 1) = 40, 320$

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The total revenue received from the sale of x units is given by R(x)=10x2+20x+1500. The marginal revenue, when x=2015, is _______

The correct option is D 40320R(x)=10x2+20x+1500∴dRdx=20x+20(dRdx)x=2015=20(2015)+20=20(2015+1)=40,320

The total revenue received from the sale of $x$ units is given by $R (x) = 10 x^{2} + 20 x + 1500$ . The marginal revenue, when $x = 2015$ , is _______

The correct option is D $40320$
$R (x) = 10 x^{2} + 20 x + 1500$
$∴ \frac{d R}{d x} = 20 x + 20$
${(\frac{d R}{d x})}_{x = 2015} = 20 (2015) + 20 = 20 (2015 + 1) = 40, 320$