Question

Estimate how many times larger 1.9x10^-8 is than 4.2x10^-13

Answers

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1.9 x 10=19
4.2x10=42
Now just find out how to multiply 19 -8 times and how to multiply 42, -13 times.
I'm scary πŸ˜…πŸ˜…
Not 42 x -13 and 19 x -8, that's the complete opposite.
I'm scary πŸ˜…πŸ˜…
Hopefully that helps :)
mathhelper
You have to divide:
1.9x10^-8 Γ· (4.2x10^-13)
= appr .45 x 10^5
= .45 x 100000
= appr 45,000 times as large
james
it is 5x10^4

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