Question

What do you do when you divide two numbers written in exponential notation

a. add the exponents of the 10 together
b. multiply the exponents of the 10 together
c. subtract the exponents of the 10 from the other
d. divide the exponents of the 10 by the other

Answer 1

Subtract the exponents when dividing and add when multiplying

Answer 2

you add the exponents
remember

`(x^m)(x^n)=x^(m+n)`

so

2 numbers in scientific notation are

`(a*10^m)(b*10^n)=(a)(10^m)(b)(10^n)=(ab)(10^m*10^n)=(ab)(10^(m+n))`


so add them