Answer
-0.272
Work Step by Step
The product of a positive real number and a negative real number is a negative real number.
We convert the decimals to fractions for ease of simplification:
$(-0.8)(0.34)$
=$\frac{-8}{10}\times\frac{34}{100}$
=$\frac{-8\times34}{10\times100}$
=$\frac{-272}{1000}$
=$-0.272$