Calcule de Clasa A 8 a! Sunt 7 exercitii, va multumesc foarte mult de ajutor puteti face cate vreti numai sa faceti una !

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?