A steel pipe in the shape of a right circular cylinder is used for drainage under a road. The length of the pipe is 12 ft and its diameter is 36 inches. The pipe is open at both ends.
How many square feet of steel is the outer surface of the pipe?

Round to the nearest integer.

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

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:

$450 i think. hope this ☺