PLEASE HELP WILL MARK BRAINLIEST !! :) What are the first three terms of the sequence defined by the recursive function an = an-1 - (an-2 - 4), when a5 = -2
and a6 = 0 ?

O -14, 14,-4

O 6, 10,8

O -2,0,2

O 2, 8, 10

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?

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i