Which of the following obtains data from a subset of a population to evaluate traits of the population?

a census
an experiment
an observational study
a sample survey
a cross-sectional survey

step-by-step explanation:

m∠a is 90°

m∠b is 40°

step-by-step explanation:

if you want to separate 54 into 6 individual tiers then you need to divide if you want to separate 54 into 6 individual tiers then you need to divide 6 and 54.

if you divide 9 by 6 you will get 54.

- hope i .

answer: rolling a number cube and flipping a coin.

step-by-step explanation: