Asphere has a radius of 12 in a horizontal plane passes through the center of the sphere. a. describe the cross section formed by the plane and the sphere. b. describe the cross sections formed as the plane intersects the interior of the sphere but moves away from the center. and you

See attachment below and find the equivalent of tan(∠qsr)

Plz hurry evaluate the expression a+b where a=8 and b=19

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