Find the limit as x approaches infinity of y=arccos(1+x21+2x2)y=arccos((1+x^2) /(1+

We just started the introduction into circles and i have no idea how to do this.

The table shows the age and finish time of ten runners in a half marathon. identify the outlier in this data set. drag into the table the ordered pair of the outlier and a reason why that point is an outlier.

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?