Posted by Coralie on Monday, February 16, 2009 at 9:23pm.
I am calculating the percentage of error again, and the expression is 2.76.7/.7, I got 2.94. Should I move the decimal over so it's 29.4?

Chem  DrBob222, Monday, February 16, 2009 at 9:53pm
Yes and I understand how you obtained 2.94 BUT you didn't indicate it correctly. You should have
[(2.760.7)/0.7]*100 = 294%. I don't know how strict your prof is on significant figures but with 0.7 only to one place, you would need to round that to 300, or better yet, express it as 3x 10^2%. The reason the parentheses are necessary is that according to the order of operations, one would divide 0.7/0.7 FIRST, then 2.761 = 1.76 and that *100 = 176%.
Answer This Question
Related Questions
 Calculus  Estimate delta(x) using the Linear Approximation and use a calculator...
 Physics  A particle is moving at 0.75c relative to a lab on Earth. By what ...
 College Chem  how do i figure out the percentage error , as well as the ...
 Calculus  Use the Linear Approximation to estimate ∆f=f(3.5)−f(3) ...
 Chemistry (check)  12) Relative error is also called _______ I got accepted ...
 Chemistry  I have to find the percentage of error. The accepted value is 11.35...
 Math  Are these correct ?. My grade counts on this and I'm not the best at math...
 Math  Please exlain how I "use the power of ten to change each to a decimal". I...
 Math  Simplify each rational expression. Can you please show me the steps on ...
 software error?  I've tried twice to post the web site for Circle of Fourths ...
More Related Questions