In the figure below ac is tangent to circle b. ba is a radius of circle b and a is a point of tangency. if ab is equal to 20 and ac is equal to 60, what is the approximate measure of segment bc? i’ve spent sooo long on this, can’t figure it out!

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

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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: