7) Select two that apply (2 points). Which of the following has a discriminant of 9?
a] f(x) = 3x² - 6x+4
b] f (x) = 2x² - 7x+5
c] f(x)=x² +5x+4
d] f (x) = 7x? - 8x+2

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step-by-step explanation:

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answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation:

i think u have 12 apples sorry again i don't really know if it correct i'm just tryna hrlp people out.