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guajiro [1.7K]
3 years ago
6

A plumber charges a rate of $65 per hour for his time but gives a discount of $7 per hour to senior citizens. Write an expressio

n which represents a senior citizen’s total cost for the plumber in 2 different ways.
Mathematics
1 answer:
garri49 [273]3 years ago
4 0

Answer:

t = 58x or t + 7x = 65x

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Use differentials to approximate the value of the expression. Compare your answer with that of a calculator. (Round your answers
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Step-by-step explanation:

According to differentials

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Substitute this vales into the differential expression above

(9+(-0.01))³ = 9³ + 3(9)²(-0.01) + 3(9)(-0.01)² + (-0.01)³

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(9+(-0.01))³ = 729-2.43+0.0027-0.000001

(9+(-0.01))³ = 729-2.43+0.0027-0.000001

(9+(-0.01))³  = 726.572699

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