Let A, B and C be sets such that |A| = 12, |B| = 7, |C| = 10. (a) If |A ∩ B| = 0, how many ways can we choose two elements, one from
A and one from B?

(b) If |A ∩ B| = 4, what is |A ∪ B|?

(c) If |A ∩ B| = 0, |A ∩ C| = 0, and |B ∩ C| = 1, how many ways can
we choose three distinct elements, one from A and one from B and one

from C?​

answer: what statements

step-by-step explanation if you write the statements down then i could you.

d is the answer

step-by-step explanation:

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

it has to have an angle of 90 degrees