If your ladder is 6 metres long and the wall is 4.5 metres high, how far away from the wall should you move your ladder so that the ladder reaches the exact top of the wall.

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?