Answer:
[tex]8.51x10^{-3}cm[/tex]
Step-by-step explanation:
In order to add or subtract numbers in scientific notation, the powers of ten must have the same exponent. In this caes the diameter of an average human body cell is a power of -4 and the diameter of a plant cell is a power of -3. In order to add them, we can move the decimal over for the body cell diameter:
[tex]5.1x10^{-4}=0.51x10^{-3}[/tex]
Add the two values: [tex]0.51x10^{-3}+8x10^{-3}=8.51x10^{-3}cm[/tex]
Answer:
8.51×10^-3 cm
Step-by-step explanation:
Hope this helps :)
