XY is tangent to circle Z at point Y. XW is tangent to circle Z at point W. If XY=12 units what is the length of the radius of circle Z to the nearest tenth of a unit?

A. 4.8 units
B. 5.0 units
C. 4.5 units
D. Not here

What is the slope of a line that is perpendicular to y = 3x + 1

Devonte is balancing his checking account. his account statement does not include a deposit of $107.00 that he made on november 1st. what is devonte’s actual account balance?

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?