maddia13 maddia13
  • 02-09-2021
  • Mathematics
contestada

Given n(J) = 285, n(K) = 197 and n(J ∪ K) = 431, find n(J ∩ K).

Respuesta :

LammettHash
LammettHash LammettHash
  • 02-09-2021

By the inclusion/exclusion principle,

n(J ∩ K) = n(J) + n(K) - n(J U K)

n(J ∩ K) = 285 + 197 - 431

n(J ∩ K) = 51

Answer Link

Otras preguntas

Lane is 10 times Mels age.  If the difference in their age is 27, how old is Mel?
Scientists divide rocks into groups based on_________
jessicas shoebox is 20 centimeters long and 10 centimeters wide. how many more millimeters is the length of the shoebox than the width
Select the simplified expression for 8(x - 4) - 4(x - 3) + 7x. 11x + 4411x - 711x - 4411x - 20
Give 3 examples to show work being done.
how can you simplify 24                                ---                                30
In the top row of an chessboard, Tom writes the values 1, 2, 4, 8, 16, 32, 64, 128. In the leftmost column, Tom writes the values 1, 3, 9, 27, 81, 243, 729, 2
What are preventable injuries and unpreventable injuries
Find the sum of 2/9+1/9?
What type of reaction occurs when you strike a match?