Determine whether each situation describes a survey, an observational study, or an experiment.
Cellphone users are asked about their satisfaction with data speeds.
а
b
survey
observational study
experiment
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Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Graph y = -|x| + 2. click on the graph until the correct one appears.

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq