hkochenower hkochenower

01-10-2017
Mathematics

contestada

Solve the equation by completing the square. Round to the nearest hundredth if necessary. x^2 +9x - 14 =0

Respuesta :

texaschic101 texaschic101

03-10-2017

x^2 + 9x - 14 = 0
x^2 + 9x = 14
x^2 + 9x + 20.25 = 14 + 20.25
(x + 4.5)^2 = 34.25
x + 4.5 = (+-) sqrt 34.25
x = - 4.5 (+-) 5.85

x = -4.5 + 5.85 = 1.35 <=
x = -4.5 - 5.85 = -10.35 <=

Answer Link

Otras preguntas

New Taxes in the Colonies Quiz 6/ 6. What was the result of the colonists' protests against the tax acts? • A) The British offered the colonists an opportunity

Which phase in the value added chain

What were the causes of Vietnam war?

What is a molecule that can serve as an energy source or provide nondigestible materials that increase the amount of rough age in the human diet A proteins B

Calculate the net acceleration acting on a 40 kg box being pushed across a horizontal floor. There is a 400 N normal force, a 195 N applied force, and a 55 N fo

8. Contrast how President Roosevelt disagreed with John Muir about environmental preservation.

What do angiosperms reproduce with? A.spores B.seeds C.cones D.amniotic eggs

Match the definition to the word. 1. not dependable illaudable 2. written in symbols irresponsible 3. cannot be conquered invincible 4. does not apply encoded 5

THIS IS 30PTS. help hi

What is a highland? (5 points) An area of high or hilly land A piece of land surrounded by water on three sides A large area of land made up of one type of land