B) 2x + 14 = 9
Mathematics, 22.03.2021 20:20 maliyahsanmiguel
What is the first step in solving this equation for x?
A) 2x + 14 + 3x = 12
B) 2x + 14 = 9
C) 2x + 7 + 3x = 12
D) 5x = -2
Answers: 2
Mathematics, 20.06.2019 18:04
Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ā dab = x, and ā abc = 90ā¦, 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 ā pad = ā pbc. but pab is isosceles, hence ā pab = ā pba. subtracting, gives x = ā padāā pab = ā pbc āā pba = 90ā¦. this is a preposterous conclusion ā just where is the mistake in the "proof" and why does the argument break down there?
Answers: 2
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What is the first step in solving this equation for x?
A) 2x + 14 + 3x = 12
B) 2x + 14 = 9
B) 2x + 14 = 9
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