Step-by-step explanation:
I
[tex]1.6 \times 10 {}^{ - 3} \times 3.2 \times 10 {}^{ - 2} [/tex]
First let multiply the decimals
[tex]1.6 \times 3.2 = 5.12[/tex]
Let's multiply the exponents, when you multiply expressions with the same base, you just add the exponents
[tex]10 {}^{ - 3} \times 10 {}^{ - 2} = 10 {}^{ - 5} [/tex]
So we get
[tex]5.12 \times 10 {}^{ - 5} [/tex]