A publishing industry report predicts that magazine subscriptions will drop by 5% each year. If this prediction is correct, then how many subscribers will a magazine with 72,000 subscribers have in 5 years?

The no. of subscribers of the magazine after 5 years is = 55713

Step-by-step explanation:

Given data

Total subscribers (N) = 72000

Drop in subscriptions in each year (R) = 5%

No. of subscribers of the magazine in 5 years is given by

= 55713

Thus the no. of subscribers of the magazine after 5 years is = 55713

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answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204