dayb4203 dayb4203

01-03-2018
Mathematics

contestada

If a+b=5 and a-b=3 find the value of a^2-b^2

Respuesta :

googlegoogle2 googlegoogle2

01-03-2018

A = 4. B = 1. The b’s cancel each other out. Then you have 2a = 8. Divide 8 by 2 and get 4. That’s a=4. Then put a back into either problem. So 4+_=5. B=1. 16-1=15. 15 is the answer

Answer Link

Otras preguntas

The steeply sloping region of a continental margin where the seafloor descends at a rate of greater than 1 ft for every 40 feet is called

Why was there a partial federal government shutdown in 1996? A) Terrorists threats led to the shutdown. B) A budget agreement could not be reached.

Evaluate f(x)=-x^2-4 for x=-3

how many grams of fluorine are needed to react with 8.5g of phosphorus?

Given that j || k, what is the measure of the missing angle? A) 30° B) 40° C) 60° D) 120°

Satire often works by

arrange in order: Moctezuma II welcomed the Spanish, thinking that Cortés was the human incarnation of the god Quetzalcoatl. Cortés and his men brought smallpox

What is the x coordinate?

If a person does not have the normal use of mental or physical faculties because they have been drinking alcohol, they would legally be considered: criminally n

please answer question!!!!!!!