Posted by Hannah on .
this is my last question for the whole assigment and im soo glad!!!
(9465 + 45  9.9) 8.1 X 10^6
i got 76950.e6
it said it was half right and said check your number of sig figs

Chemisty (Sig Figs) 
bobpursley,
the 8.1 will limit the answer to two sig figures. The answer cannot be more precise than the least precise number.

Chemisty (Sig Figs) 
Hannah,
oh so i have to round. so id be 7.7e6?

Chemisty (Sig Figs) 
bobpursley,
Nope. 77000e6 or 7.7e10

Chemisty (Sig Figs) 
Hannah,
oh i understand thanks a bunch! youve helped me a lot!!