Answer:
8.4*10^-5
Step-by-step explanation:
if the zero is in the left side then u have to count zero after the decimal point upto ones term and then add*10^n where n=-no. of zeros.
here,
0.000084= 8.4*10^-5
similarly if the zero is on the right side
for eg:
8400000
then u have to count all the zeros from the right side upto ones term and then add *10^n where n=no. of zeros
8400000=8.4*10^6
