Question

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6 x 10^4 is how many times greater than 3 x 10^-5

A 2 × 10^9

B 4 × 10^−1

C 4 × 10^1

D 2 × 10^−9

Answer 1

The answer is A. What you do first is divide 6 by 3 to get 2 then you bring down your 10-----> 2*10. Then you subtract -5 from 4 ---> 4-(-5) (if the equation looks like this and only this then you just add the 4 and the 5, you can remember this because the subtraction sign, parenthese, and negative sign looks like a big addition sign.) Your answer will be 9 so just bring that sown too! Your final answer is 2*10^9

Answer 2

6/3 = 2
10^4/10^-5 = 10^9

so it's 2 x 10^9

answer
A 2 × 10^9