Asked by Anneliese
9.6*10^2/3.2*10^5
please evaluate this expression and show answer in both scientific notation and in standard form.
Thank you so much for helping me.
please evaluate this expression and show answer in both scientific notation and in standard form.
Thank you so much for helping me.
Answers
Answered by
MathMate
Method 1:
Use calculator, and do not forget to surround the numerator and denominator by parentheses, i.e. type in:
(9.6*10^2)/(3.2*10^5)
Method 2: (easier way)
(9.6*10^2)
------------
(3.2*10^5)
Note that
9.6/3.2=3, and
10^2/10^5=10^(2-5)
=10^(-3)
so the answer is
3.0*10^(-3) in scientific notation
and in standard form, replace 10^(-3) by a shift of the decimal point 3 places to the <i>left</i>, which gives
0.003
Use calculator, and do not forget to surround the numerator and denominator by parentheses, i.e. type in:
(9.6*10^2)/(3.2*10^5)
Method 2: (easier way)
(9.6*10^2)
------------
(3.2*10^5)
Note that
9.6/3.2=3, and
10^2/10^5=10^(2-5)
=10^(-3)
so the answer is
3.0*10^(-3) in scientific notation
and in standard form, replace 10^(-3) by a shift of the decimal point 3 places to the <i>left</i>, which gives
0.003