Which of the following describes a potential problem with case studies? They generally involve too few participants to allow meaningful conclusions. They generally involve too many participants to allow meaningful conclusions. They are generally conducted by people who are untrained in scientific observation. They are generally biased due to the patient’s awareness of their illness.

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?