Respuesta :

ScoobyDoo92930

Given:

  • A is a set of months having 28 days.
  • B is a set of days of the week that starts with A.
  • C is a set of prime numbers less than 10.
  • D is a set of days of the week that ends with Y.
  • E is a set of quadrilaterals.

Roster Method:

  • A = {January, February, March, April, May, June, July, August, September, October, November, December}
  • B = {} or ∅
  • C = {1, 2, 3, 5, 7)
  • D = {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday}
  • E = {Parallelogram, Rectangle, Square, Rhombus, Trapezoid, Kite}

Cardinalit(y):

  • n(A) = 12
  • n(B) = 0
  • n(C)= 5
  • n(D) = 7
  • n(E) = 65

[tex] :) [/tex]

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