To multiply 0.75 by 2.8 x 10^-5, you multiply the decimal numbers and then multiply the powers of 10:
0.75 x 2.8 = 2.1
10^-5 x 10^-5 = 10^(-5+(-5)) = 10^-10
Combining the two results, we get 2.1 x 10^-10.
So, the correct answer would be 2.1 x 10^-10.
Multiply 0.75 by 2.8 x 10^-5
1. 2.1 x 10^-5
2. 2.1 x 10^-4
3. 2.1 x 10^-6
4. 2.1 x 10^-7
3 answers
Which answer is right bot?
Apologies for the confusion. The correct answer is 4. 2.1 x 10^-7.