Question #99d73
2 Answers
Mar 16, 2017
Because we do not need to move the decimal point we can multiply this term by
Mar 16, 2017
Explanation:
A number expressed in
#color(blue)"scientific notation"# has the form.
#color(red)(bar(ul(|color(white)(2/2)color(black)(axx10^n)color(white)(2/2)|)))# where
#1<=a<10" and n is an integer"#
#7.5" is in this interval so requires no adjustment"#
#color(orange)"Reminder " a^0=1#
#rArr7.5 #
#=7.5xx1#
#=7.5xx10^0#