Amirah and Dana want to move the piano in their living room. Amirah pushes from behind with a force of 300 N and Dana pulls from the front using a rope with a force of 200 N. The piano has a mass of 180 N and the friction force of the floor and the piano is 230 N Calculate the acceleration of the piano. Round your answer to the nearest tenth.

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:

5: 20

step-by-step explanation: