Answer:
0.62
Step-by-step explanation:
0.5+0.1+.02=0.62
I do not understand why there are two decimal places.
But either ways if you are asking for :
0.0000489 then it is 4.89*10⁻⁵
0.489 then it is 4.89*10⁻¹
The trick is to count the zeroes to the first actual significant number you see and then write the number you counted with a negative sign for your power.
I hope this helps!
283 divided by 12.3 = 23.008 and rounded it will just be 23.
