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A negative times a negative equals a positive A negative times a positive equals a negative A positive times a positive equals a positive
for algebra, + times + equals -, - times - equals +, add finally two different signs equal -. hope i helped!! :)
One of the rules of significant figures is that leading zeros are not significant; therefore, 0.00034 will only have TWO significant figures (3 and 4).
the precision of the answer must have the same number of significant digits as the measurement with the least significant digits- the site explains the rules and how to identify significant digits
Simple math rules state that a negative times a negative equals a positive!