Question #59a15

1 Answer
Feb 3, 2017

Answer:

#4.5375xx10^1#

Explanation:

#3/8=0.375#

#rArr45 3/8=45.375#

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"#

Expressing 45.375 in this form means writing the number as a value between 1 and 10

#rArr45.375to4.5375#

and to get the decimal point back to where it should be means multiplying by 10

#rArr4.5375xx10=45.375larrcolor(red)" the original value"#

#rArr45 3/8=45.375=4.5375xx10^1" in scientific notation"#