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motikmotik
2 years ago
9

Please need help 20 points

Mathematics
1 answer:
Debora [2.8K]2 years ago
8 0

Step-by-step explanation:

90+48=138

180-138=42

y=42

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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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Answer:

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Step-by-step explanation:

According to differentials

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Using this formula to solve (8.99)³, this can also be written as;

(8.99)³ =  (9-0.01)³ where

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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

(9+(-0.01))³ = 729 + (243)(-0.01) + 27(0.0001) + (-0.000001)

(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

Hence 8.99³ = 726.572699 (Using differential)

Using calculator;

8.99³ = 726.572699

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3 years ago
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