SOMEONE PLEASE HELP FAST Is the figure an example of perpendicular lines?

A). Yes, the lines intersect at a 90-degree angle.

B). Yes, the lines do not intersect at a 90-degree angle.

C). No, the lines intersect at a 90-degree angle.

D). No, the lines do not intersect at a 90-degree angle.

10% of 1,900,000. show me how you got the answer

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?

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?