Answer:
= 0.00021
Step-by-step explanation:
This statement will be written as;
2.1*(10^-4)
Now to solve this expression. Notice that the exponent of 10 is negative
So we know that a^-b = 1/a^b
2.1*(1/10^4)
10^4 means multiply 10 four times:
2.1(1/10*1/10*1/10*1/10)
2.1(1/10,000)
2.1/10,000
=0.00021
Thus the answer is 0.00021....
