Question

What is the missing part of the solution?

Answer 1

9514 1404 393

Answer:

  6.64

Step-by-step explanation:

Perhaps you have ...

  $3.4\times10^{-20}+5.4\times10^{-19}+9\times10^{-20}=\underline{\ \ \ \ }\times10^{-19}\\\\=(0.34+5.40+0.90)\times10^{-19}=\boxed{6.64}\times10^{-19}$

_____

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

Answer 2

Answer:

Answer:

6.64

Step-by-step explanation:

Perhaps you have ...

3.4 x 10 20 -19 +5.4 x 101 +9 x 101 -20 = x 1

= (0.34 +5.40 + 0.90) x 107 -19

6.64 x 10

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