## calculusxy one year ago MEDAL!!! Scientific notation help! Question will be attached below...

1. calculusxy

$\frac{ 3.45 \times 10^{-3} }{ 2.5 \times 10^6 }$

2. calculusxy

@jim_thompson5910

3. calculusxy

can you just check my steps???

4. jim_thompson5910

ok

5. calculusxy

1. $3.45 \div 2.5 = 1.38$ 2. $1.38 \times 10^9$

6. calculusxy

would number 2 be the answer?

7. calculusxy

sorry i meant $1.38 \times 10^{-9}$

8. jim_thompson5910

you subtract the exponents top - bottom = -3 - 6 = -9 not +9

9. jim_thompson5910

better you caught it before I could finish up

10. calculusxy

just noticed my silly mistake... thank you for your help !

11. jim_thompson5910

$$\LARGE 1.38 \times 10^{-9}$$ is the right answer