How many significant digits are there in the product of 45.20 and 101

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)