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

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

Bhim Prasad borrowed Rs. 99,000 from a bank at the rate of 8% p.a?

Give 3 examples for uses of the lithosphere.

7. I like----- a. that old Spanish song b. old that Spanish song c. that old song Spanish d. that Spanish old song

Someone please help me with this

What is the mean of these numbers: 120, 118, 120, 136, 121?

QUESTION 2 CELLS AS ABASIC UNIT OF LIFE Study the diagram below and answer the question that follows. 2.1. Identify the type of cell illustrated above. 2.2. Pro

2. Weather Studies Ch. 15 states "scientists have found the rate of melt on the Antarctic and Greenland ice sheets to now be the dominant contributor to sea lev

A set has 127 proper subsets. How many elements are there in the set?

What is physical attack

a principal amount of $1100 is placed into a savings account with a APR of 2.55% simple interest for 10 years