Posted by anonymous on .
write in scientific notation
1) 400,000 = 4x10^5
2) 5412= 5.412x10^3
3) 0.00056= 5.6x10^4
4) 0.0000814= 8.14x10^5

scientific notation am i doing it right? 
MathMate,
All correct, well done!

scientific notation am i doing it right? 
anonymous,
YES!! thank you

scientific notation am i doing it right? 
anonymous,
can you check this please?
1) 8x10^4
= 80000.
2) 9.82x10^5
= 98,200,000.
3) 9x10^3
= 0.0009
4) 7.24x10^6
= 0.00000724 
scientific notation am i doing it right? 
MathMate,
#1 is correct.
The power of 10 refers to the number of positions the decimal point has to be moved, not the number of zeroes.
So for #2, it should be
9.82000*100000=982000
Similarly, for #3,
9x10^3=9/1000=0.009
I will leave #4 for you to try. 
scientific notation am i doing it right? 
anonymous,
.00000724

scientific notation am i doing it right? 
Mercy,
ur right

scientific notation am i doing it right? 
anonymous,
YES! thank you

scientific notation am i doing it right? 
MathMate to Mercy,
Merci!

scientific notation am i doing it right? 
Mercy,
wat

scientific notation am i doing it right? 
MathMate,
Sorry, finger faster than the brain, forgot to change since last post.

scientific notation am i doing it right? 
Mercy,
change what

scientific notation am i doing it right? 
MathMate,
signature.

simplifying 
jon,
(3b)^3