dbsnabin9a13 dbsnabin9a13

21-07-2021
Mathematics

contestada

n(a)=60% n(o)=70% N(ano)=400 n(auo)complenment=10 find U and a only

Relax

Respuesta :

TyrantMC TyrantMC

21-07-2021

n(A∪B)=n(A)+n(B)−n(A∪B)=50+60−40=70

n(AΔB)=n(A∪B)−n(A∩B)

⇒70−40=30.

Answer Link

Otras preguntas

What are the types of energies released when a candle burns? A. thermal and radiant B. potential and electrical C. chemical and nuclear D. electrical and sound

What is true of saturated fatty acid chains? They are more healthy that unsaturated fats. They contain only single covalent bonds. They are only made in leaf ce

Help!!!! Which of the following was NOT true of Vichy France? a. The French military was disbanded . b. The French government moved to French colonies in North

Which of the following best describes the relationship between the shape of enzymes and the reactions they catalyze? The shape of an enzyme depends on the react

B/Which sentence does not contain any errors? a. Its' like something my mother wore thirty years ago. b. It's like something my mother wore thirty years ago. c.

I NEED HELP QUICKLY PLEASE PLEASE PLEASE John wants to have $2 000 in 3 years. The current rate of return for a high interest savings account is 2.8%, compou

What percentage of fish spcies live in freshwater ecosystems? A. 30% B 40% C. 45% B. 35%

In which of the following ways did Alexander Hamilton die? Select one: a. He died of old age. b. He died in a gun duel. c. He died after being trampled by horse

A protest at Tiananmen Square in 1989 convinced China’s leaders to a.expand participation in government. b.crack down on democratic protests. c.expand the right

Most of the African continent is on a high _____. a. desert b. plateau