Which choice is equivalent to the expression below? The square root of 20 minus the square root of 5+ the square root of 45

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

True or false? a circle could be circumscribed about the quadrilateral below.

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.