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Evaluate the following expression.18.9 x [(2 x 2.7) – 4.6] - 2 to the power of 2 =

User Rahin
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1 Answer

3 votes

Answer:

11.2

Explanation:

To perform the operation given, we use PEMDAS.

Parenthesis comes first; therefore,


18.9\lbrack5.4-4.6\rbrack-2^2

Exponents come second:


18.9\lbrack5.4-4.6\rbrack-4

parenthesis again


18.9\lbrack0.8\rbrack-4

multiplication next


15.12-4

and finally, subtraction


11.2

which is our answer!

User Kingk
by
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