Okay in scientific notation you put the decimal behind the first number so in this case it would be 3.5 now count the decimal places you moved there are 3 and it is negative because the decimal was Infront of the number so .0035 is 3.5×10^-3 in scientific notation.
In scientific notation form, we put the decimal behind the first number so in the given case it would be 3.5 we will move the decimal point to the left as the exponent of ten is a negative number.so .0035 is 3.5×10^-3 in scientific notation form.
