CHECK MY ANSWER PLEASE!?
6. Based upon the 2010 census data, the total population of the us is 308,745,538 people. Approximately, what is this population in scientific notation?
A. 3.1 x 10^8**
B. 3.1 x 10^7
C. 3.1 x 10^-8
D. 31 x 10^7
7. What is the solution to (3 x 10^2) x (5 x 10^5) written in scientific notation?
A. 1.5 x 10^8
B. 15 x 10^8
C. 1.5 x 10^7
D. 15 x 10^7**
4 answers
Anything will help i'm trying to get a lot done by the 31st.
#6, correct
#7, your 15 x 10^7 is correct, but not in true scientific notation
In SN, the number in front must have one digit before the decimal place, so
15 x 10^7
= 1.5 x 10^8 , (note since I made the 15 "smaller", I must make the 10^7 "bigger"
#7, your 15 x 10^7 is correct, but not in true scientific notation
In SN, the number in front must have one digit before the decimal place, so
15 x 10^7
= 1.5 x 10^8 , (note since I made the 15 "smaller", I must make the 10^7 "bigger"
Thank you so much Reiny, this was very helpful.
How come the first answer is 10^8 and not 10^-8