Question

Jenna calculated several numbers in her calculator. The result displayed -1.7E-4 on the calculator screen. Which equivalent number(s) does this represent? Select all that apply. 1.7 × 10-4 -0.00017 0.00017 -1,700 -1.7 × 10-4

Answer 1

I think it's 
-0.00017 and -1.7 x 10-4

i hope this helps :)

Answer 2

Answer:

$-1.7 X 10^{-4}$  and -0.00017

Step-by-step explanation:

If -1.7E-4 is displayed on the calculator,

E-4 means $10^{-4}$

Therefore:

-1.7E-4 =$-1.7 X 10^{-4}$

If we have $-1.7 X 10^{-4}$ , to convert to decimal, the negative exponent means the number of zeros before the first non-zero number. Since the power is -4, there are 4 zeroes before the first non-zero number.

Therefore:

$-1.7 X 10^{-4}$ =-0.00017