Question

280/1.6×10^-19 with proper steps

Answer 1

${ \large \bold \blue { \underline{answer = 1.75 \times {10}^{ - 7} }}}$

Explanation:

${ \large \bold \green { \underline{ \underline{question}}}} \\ { \large \bold{ \frac{280}{1.6 \times {10}^{ - 9} } }} \\ \\ { \large \bold \red { \underline{solution}}} \\ \\ { \large{ \frac{280}{1.6 \times {10}^{ - 9} } }} \\ { \large{ = \frac{175}{ {10}^{ - 9} } }} \\ { \large{ = \frac{1.75}{ {10}^{2} \times {10}^{ - 9} } }} \\ { \large{ = \frac{1.75}{ {10}^{ - 7} } }} \\ { \large{ = 1.75 \times {10}^{ - 7} }} \\ \\ { \large \bold \blue { \underline{answer = 1.75 \times {10}^{ - 7} }}}$

Answer 2

Answer:

1.75x10⁻¹⁷

Explanation:

280/ 1.6 x 10⁻¹⁹ = {280/1.6} x 10⁻¹⁹

=> 175x10⁻¹⁹ => 1.75 x 10⁻¹⁹⁺² => 1.75x10⁻¹⁷.

Hope this helps u mate......................