Which of the following phrases are inequalities? choose 3 answers: choose 3 answers:
(choice a) a x^2-5x+6x 2 −5x+6x, squared, minus, 5, x, plus, 6
(choice b) b 11> (w-4)^211> (w−4) 2 11, is greater than, (, w, minus, 4, ), squared
(choice c) c y< 3^4y< 3 4 y, is less than, 3, start superscript, 4, end superscript
(choice d) d 5+9< 5\cdot 95+9< 5⋅95, plus, 9, is less than, 5, dot, 9
(choice e) e \dfrac{z+11}{2z-1} 2z−1 z+11

a,d,e

Step-by-step explanatthat was the anwser in khan acadmey

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.