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

Isometric exercise strengthens muscles without __________. a. contracting muscle fibers b. changing muscle length c. burning calories d. conscious effort

What did the U.S. Peace treaty with spain say?

How did the united nations respond to the north Korean invasion of south Korea in 1950?

The tone for a political speech should be professional but also

what is the measure of ehg?

The brain is made up of about ______ nerve cells.

What is the history of development of the energy source?

Mr. Baker's fifth - grade class buried a time capsule in the field behind the school. They drew a map and marked the location of the capsule with an X so his cl

The national government has _____________ powers that are spelled out in the Constitution.

Coronary artery disease is a disease of the heart where the arteries and blood vessels become clogged with fat deposits called _____. fat tartar plaque adipose