Which of the following describes a unit rate? O 13 pounds per 12 inches
O 15 fish per 12 gallons
O 24 hours per day
0
55 miles in 3 hours

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?

Choose the more precise measurement. 26.4 cm or 8.39 cm

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?