Question

Jenna calculated several numbers in her calculator. The result displayed 1.8E-4 on the calculator screen. Which equivalent number(s) does this represent? Select all that apply.

-0.00018
1.8 × 10 -4
18 × 10 4
0.00018
1800

Answer 1

Explanation:

It is given that the result displayed on the calculator screen is
`1.8E 10^(-4)`. We need to say out of all options, which options represent the equivalent number.

`1.8* 10^(-4)=(1.8)/(10^4)\\\\=(1.8)/(10000)` .....(1)

Option (2) is correct i.e.
`1.8E10^(-4)=1.8* 10^(-4)`

From eq2uation (1)

`(1.8)/(10000)=(18)/(100000)\\\\=0.00018`

Option (4) is correct.