# 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

#### Answer:

#### 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#