I went on this math website called “letsanswers” and it gave me like an alert thing saying my iphone has a virus is this real? how do I check

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3