A sprinter completed a 100 m run with a time of 16.15 seconds. Her time,
t
, has been rounded to the nearest hundredth of a second.
Write the error interval for
t
in the form
a
≤
t
<
b
.

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,