Coarda AB este situată la distanța de 9 centimetri față de centrul cercului C(O, r). Dacă AB =24 cm, calculați lungimea razei cercului.

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?

A5 foot long board is propped against the wall of a house. the board forms a 60° angle with the ground. how far is the base of the board from the wall?