The Handbook of Chemistry and Physics lists the density of a certain liquid to be 0.7988 g/mL. Taylor experimentally finds this liquid to have a density of 0.7925 g/mL. The teacher allows up to +/- 0.500% error to make an "A" on the lab. Did Fred make an "A"? Prove your answer.

Fred did not tke an A in the exam.

Explanation:

To take an A in the exam, the density of the measurements must be between a 0.500% of 0.7925g/mL. That is:

0.7988g/mL + 0.7988g/mL* (0.5/100) = 0.8028g/mL

0.7988g/mL - 0.7988g/mL* (0.5/100) = 0.7948g/mL

That means to take an A on the lab the desnity determined must be between 0.8028g/mL and 0.7948g/mL

As the density determined was 0.7925g/mL, Fred did not tke an A in the exam

a:

by the combination of an unlimited number of elements

bcde is the incorrect answer it is a