Andy, who loves to cook, makes apple cobbler for his family. the recipe (serves 6) calls for 3 1/4 pounds of apples, 4 3/4 cups of flour,1/7 cup of margarine, 3 5/8 cups of sugar, and 2 teaspoons of cinnamon. since guests are coming, andy wants to make a cobbler that will serve 15 (or increase the recipe 2 1/2 times). how much of each ingredient should andy use?

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 of the following statements is not true? a. parallel lines are lines in the same plane that never intersect. b. congruent figures have the same shape and same size angles and sides. c. similar figures must have the same shape and the same size. d. a rotation is when you turn a figure around a certain point.

Hello people, i have a math question that i need with, me, i will give the correct one brainiest, and for the other correct people, a and 5 stars.