assvecca assvecca

20-03-2021
Mathematics

contestada

given that x2 - y2 = 135 and x - y = 15 , find the value of (x+y)2

Respuesta :

Аноним Аноним

20-03-2021

Answer:

x² - y² = 135

<=> (x - y)(x + y) = 135

<=> 15(x + y) = 135

=> x + y = 135/15 = 9

=> (x + y)² = 81

Answer Link

Otras preguntas

I really need need your help please :( This subject is (Education) Videos - Is ADHD An Advantage? - Top 10 inspirational People with ADHD Share you

If your only given sample size, standard deviation, and mean how do you know if a central limit theorem problem is left and not right skewed if it doesn’t say i

A 2nd question raised was What are the rights of doctors to decide when medical intervention ceases to become treatment and starts to become torture? a) True b)

The inner plants are the four plants Blank the sun

make me an argumentative essay

What decoy system can support detection efforts by mimicking specific applications and gathering information on the attacker's tactics and tools?a) Firewallb) A

Use the scale of the school map to work out real distances:a. Calculate the distance between the school and the bus stop.b. What is the distance between the bic

how is the cuban revolt of 1895 a cause for the Spanish-American war?

Use the graph of the function to answer the question. Is this function one-to-one? Explain how you determined your answer.

The table below compares the distances of two astronomical bodies from Earth. Astronomical Distances Astronomical BodyDistance from Earth Sun149 million kilomet