before he leaves for the airport Jorge weighs his luggage. he has a case a laptop computer and a backpack with total weight 19.2 kg. 2/3 of the 19.2 kg is the weight of the case and 3/5 of the remainder is the weight of his laptop, how much does the backpack weight?

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:

0.85% : )

step-by-step explanation:

a reflection across the x axis and a 90 degree rotation left and right.