Can somone plz tell me which realtion is a function PL x/y=y2 - 3
y/x= y2 -3
x2 + y2 = 5 +x
x2 - y = 10x + 25 + y

What are the soultion(s) to the quadratic equation 40- x^2=0

Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length

A. the following events are mutually exclusive: living in california and watching american idol. true or false b. the number of patients seen by an outpatient practice is an example of a discrete random variable. true or false c. the law of large numbers states that as the number of times an event experiment is conducted increases, the likelihood of the actual probability of an event approaching the theoretical probability decreases. true or false d. measuring the time it takes for patients to enter the operating room is an example of a continuous random variable. true or false