How do you evaluate #(- 15.6) ( - 7.7) ( 46.8)#?

1 Answer
SCooke
Nov 19, 2017

Multiply the factors and adjust the result for the correct number of significant figures.

Explanation:

Multiplication is the assumed shorthand for grouped parentheses. The order does not matter, and the negative/positive combination doesn't either, as a net "positive" value results in any case.
#(−15.6) xx (−7.7) xx (46.8) = 5621.616#

Given the number of significant figures (2) in the least-significant-figure value (-7.7), the scientifically accurate answer would be
#5600#.

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