Astudent scores 62 on a geography test and 267 on a mathematics test. the geography test has a mean of 80 and a standard deviation of 15. the mathematics test has a mean of 300 and a standard deviation of 22. if the data for both tests are normally distributed, on which test did the student score better relative to the other students in each class

a

step-by-step explanation:

a

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: