Question

divide and express the product in scientific notation. fill in missing number
4.2x10 ^-12 divided by
5.6x10^6
=7.5x10^?

Answer 1

$\frac{4.2 \times {10}^{ - 12} }{5.6 \times {10}^{6} } \\ 7.5 \times {10}^{ - 19}$

Answer 2

Answer:

The missing number is -19

Step-by-step explanation:

$\frac{4.2*10^{-12} }{5.6*10^{6} } = \frac{420*10^{-14} }{56*10^{5} }= \frac{420 }{56 }*\frac{10^{-14}}{10^5} =\frac{420}{56}*10^{-19} } = 7.5*10^{-19}$