Question

I need help with this question

Answer 1

The sequence of keystrokes directs the calculator to compute

`(5\cdot 10^(-9))/(2\cdot 10^4)=(5)/(2)\cdot 10^((-9-4))=2.5\cdot 10^(-13)`

The display will read ...

... A) 2.5E-13

_____

You can enter these keystrokes on your calculator and get the answer immediately.

___

Actually, it is very likely Samuel's calculator displayed 2E4, since the key for "=" has not been pressed.