Question

PLEASE HELP Jenna calculated several numbers in her calculator. The result displayed -1.7E-4 on the calculator screen. Which equivalent numbers does this represent? select all that apply. -1.7 ×10^-4 , 1.7×10^-4 , 0.00017 , -0.00017 , -1,700​

Answer 1

1.7X10−4  and -0.00017

Step-by-step explanation:

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

E-4 means 10^{-4}10−4

Therefore:

-1.7E-4 =-1.7 X 10^{-4}−1.7X10−4

If we have -1.7 X 10^{-4}−1.7X10−4 , 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}−1.7X10−4 =-0.00017