Question

a steel meter rule has correct lenght at 28 degree celcius on the day the temparature is 40 degree celicius,it measures the lenght of a table at 158m .what is the true lenght of the table.alpha=0.000012 raise up to power

Answer 1

That table is about one and a half football fields long?

Answer 2

anyway
L * 0.000012 ( 40 - 28) = 158 - L

Answer 3

close enough is
158 * 0.000012 ( 40 - 28) = 158 - L