morgannwaldrupp

04.02.2020 • 

Mathematics

Many income tax systems are calculated using a tiered method. under certain tax law, the first $100 000 of earning are subject to a 35% tax, earnings greater than $100 000 and up to $500 000 are subjects to a 45% tax. any earnings greater than $500 000 are taxed at 55%. write a piecewise function that models this situation.

Ответ:

tladitidimatso9605

18.01.2022

Mathematics

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Here is the step by step explaination
Tax = 0.35 * Earnings (Earnings < $100,000)

Tax = 0.35 * $100,000 + 0.45 * (Earnings - $100,000) ($100,000 < Earnings < $500,000)

Tax = 0.35 * $100,000 + 0.45 * $400,000 + 0.55 * (Earnings - $500,000)

(Earnings > $500,000)

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Ответ:

marissasabino111

29.04.2020

Mathematics

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hello :
cot(-x) tan(x)=-1(*)
* cot(x) = 1/tan(x)
 cot(-x) = -cot(x)= -(1/tan(x))

                       cot(-x) tan(x) =   -(1/tan(x))×tan(x)=-1

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