Select the correct answer from each drop-down menu. ? abc has vertices at a(11, 6), b(5, 6), and c(5, 17). ? xyz has vertices at x(-10, 5), y(-12, -2), and z(-4, 15). ? mno has vertices at m(-9, -4), n(-3, -4), and o(-3, -15). ? jkl has vertices at j(17, -2), k(12, -2), and l(12, 7). ? pqr has vertices at p(12, 3), q(12, -2), and r(3, -2). can be shown to be congruent by a sequence of reflections and translations. can be shown to be congruent by a single rotation.

Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ∠dab = x, and ∠abc = 90◦, and ad = bc. say the perpendicular bisector to dc meets the perpendicular bisector to ab at p. then pa = pb and pc = pd. so the triangles pad and pbc have equal sides and are congruent. thus ∠pad = ∠pbc. but pab is isosceles, hence ∠pab = ∠pba. subtracting, gives x = ∠pad−∠pab = ∠pbc −∠pba = 90◦. this is a preposterous conclusion – just where is the mistake in the "proof" and why does the argument break down there?

Which value of c would make he following expression completely factored? 8x+cy

Which function is increasing? o a. f(x)=(1/15)* o b. f(x)= (0.5)* o c. f(x)=(1/5)* o d. f(x) = 5*