How do you write 0.5 in scientific notation?
1 Answer
Explanation:
To convert standard notation into scientific notation:
(assuming a value greater than zero)

If the value is less than 1
#color(white)("XXXX")# move the decimal point to right as many places as necessary to leave exactly 1 nonzero digit to the left of the decimal point; this new version becomes your mantissa; the negative of the number of places you moved the decimal point becomes your exponent . 
If the value is greater than 1
#color(white)("XXXX")# move the decimal point to the left as many places as necessary to leave exactly 1 nonzero digit to the left of the decimal point; this new version becomes your mantissa; the number of places you moved the decimal point becomes your exponent. 
If the value is exactly 1
#color(white)("XXXX")# the mantissa is#1.0# and the exponent is 0. 
If the value is exactly 0
#color(white)("XXXX")# the mantissa is#0.0# and the exponent is 0. 
If the value is negative
#color(white)("XXXX")# Write a minus sign prefix and then treat as a positive value.
Substitute your mantissa and exponent into the general scientific form: