The rule when rounding off numbers is "If the first figure to be discarded is 5 or more then the previous figure is increased by 1".
As the answer only requires 2 significant figure then the first figure to be discarded is the units digit of 1. As this is not 5 or more then the previous figure (5) remains unchanged.
151.208 to 2 sf = 150
NOTE : Zeros are kept to show the position of the decimal point or to indicate that zero is a significant figure.
00.9000
3 sig figs
4 sig figs the ending zero is not significant unless it was a measurement and the zero was an estimation that was part of the measurement.
sig>0,5
Just the one
1080
It depends to how many significant figures: 1 sig fig => 10 (technically 1 x 101 or 1e1) 2 sig fig => 13 3 sig fig => 12.7 4 sig fig => 12.74 5 sig fig => 12.744
2x1.0079 =2.0158 has 1 sig fig because u have to use the smallest sig fig that was in the whole calculation which was 2, therefore the 2 in 2.0158 is the only sig fig
There is 1 sig fig in the number 2.
2nd sig fig is 5, next digit (3rd sig fig) is 2 which is less than 5, so round down; ⇒ 1.5255698 = 1.5 to 2 sig fig.
There are 2 sig fig in 5.4
In 0.00047 there are 2 sig fig.
93000000 has 2 sig fig.
Yes, except that 0.50 has 2 sig figs and 0.5 has 1 sig fig.
there are 2 sig fig. they are 1 and 2
There is one sig fig
4647 is 4600 to 2 sig fig.
71372 to 2 sig fig is 71000