In ΔABC, the sum of the measures of ∠A and ∠B is 47°. What is the measure of ∠C ? Question 1 options:

133°

47°

86°

143°

94°

133

Step-by-step explanation:

A + B = 47

A + B + C = 180

47 + C = 180

C = 180 - 47

C = 133

126 maybe. sorry

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: