Let r and s be binary relations on a set a. suppose that r is an equivalence relation and that s is symmetric, and transitive but is not reflexive. which statement is always true for any such r and s?
(a)r? s is symmetric but not reflexive and not transitive.
(b)r? s is symmetric but not reflexive.
(c)r? s is transitive and symmetric but not reflexive
(d)r? s is reflexive and symmetric

s

step-by-step explanation:

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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