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3 years ago

What is 46.3 minus 44.58 (tell me how you got it step by step please!)

Mathematics

2 answers:

LUCKY_DIMON [66]3 years ago

4 0

$46.3 - 44.58 \\ =1.72$

Radda [10]3 years ago

4 0

HOPE THIS WILL HELP U...:)

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Answer:

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2 years ago

The publisher of a recently released nonfiction book expects that over the first 20 months after its release, the monthly profit

wolverine [178]

Answer:

(a) $\frac{dP}{dt}=\frac{4800-1600t-240t^2}{(t^2+20)^2}$

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Step-by-step explanation:

Given the monthly profit model:

$P(t)=\frac{240t-40t^2}{t^2+20}$

(a)We want to derive a model that gives the Marginal Profit, P' of the book.

We differentiate

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$\frac{dP}{dt}=\frac{(t^2+20)(240-80t)-(240t-40t^2)(2t)}{(t^2+20)^2}$

Simplifying

$\frac{dP}{dt}=\frac{4800-1600t-240t^2}{(t^2+20)^2}$

We have derived a model for the marginal profit.

(b) After 5 months, at t=5

Marginal Profit=P'(5)

$\frac{dP}{dt}=\frac{4800-1600t-240t^2}{(t^2+20)^2}$

$P^{'}(5)=\frac{4800-1600(5)-240(5)^2}{(5^2+20)^2}$

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(c)Marginal Profit 11 Months after book release

$P^{'}(11)=\frac{4800-1600(11)-240(11)^2}{(11^2+20)^2}$

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2 years ago

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Answer:

Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

From the question given above, the following data were obtained:

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1. For the first box:

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3. For 7/10

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