Question

select all that apply
if you use dimensional analysis,
□ finding your answer has the correct units tells you that your answer is accurate.
□ you can choose appropriate conversion factors.
□ it is best to do so before performing the calculation.
□ finding your answer has the wrong units tells you that you have made an error.

Explanation:

Dimensional analysis helps in choosing conversion factors to convert between units. Having correct units doesn't guarantee accuracy as there could be numerical errors. It is useful to use dimensional - analysis during calculations. A wrong - unit answer indicates an error in the calculation process.

Answer:

B. you can choose appropriate conversion factors.
D. finding your answer has the wrong units tells you that you have made an error.