If ax²+bx+c=0 and a≠0, x1 and x2 are a) real and different if the discriminant D is:
b) real and equal if the discriminant D is:​

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i cant fully remember all of the ranks, here are the ones i remember.

hand, ambitous, ace, genius.

step-by-step explanation:

at each of the parallel lines adjacent angles are supplementary. the angles have special names identifying their positions with respect to the parallel lines and transversal. they are corresponding angles, alternate interior angles, or alternate exterior angles. an angles is congruent to its matched angle.

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the answer is b.

surface area: 169π

volume: 366π

i got it down.