Question

What is the missing part of the solution?

(3.4 times 10 Superscript negative 20 Baseline) + (5.4 times 10 Superscript negative 19 Baseline) + (9 times 10 Superscript negative 20 Baseline)
times 10 Superscript negative 19

Answer 1

9514 1404 393

Answer:

6.64

Explanation:

Perhaps you have ...

`3.4*10^(-20)+5.4*10^(-19)+9*10^(-20)=\underline{\ \ \ \ }*10^(-19)\\\\=(0.34+5.40+0.90)*10^(-19)=\boxed{6.64}*10^(-19)`

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Here, it is convenient to factor out 10^-19. If you like, a calculator or spreadsheet can figure this for you.