Triangle a b c extended to both sides from corners a and b. d is a point closer to point a on the extended line. angle c is located on the top. the measure of angle c is 80âº, the measure of ∠ cba is 20âº. what is m∠ cad? a) 20⺠b) 80⺠c) 100⺠d)110âº

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota