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

simplify : 81s^2/36s^2

Cory's average score after 8 tests is 91%. If he gets a 78% on his 9th test what will his new average be? How do i figure out this problem?

How many $0.21 pencils can be purchased for $7.00? Show your work.

what is tn=6n-9.5,t15

what forces led Americans to declare war on Britain in 1812?

Create the shortest poem ever in world history. This you do, your name could be on the Guiness World Records!

what is 16,700,000,000,000,000 estimated as the product of a single digit and a power of 10

does 20 hundredths equal 2 thousandths

can humans cause a imbalance in the food chain

An oak tree that is 220 years old produced acorns at two different rates. Until it reached maturity, it produced an average of 900 acorns a year. However, once