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

What is the study of the functions of the cells, tissues, organs, and organ systems of the living organism?

PLZ HELP!!!!! Inspirational Poem Instructions •Write a poem that repeats an inspirational phrase or sentence. •For example: I will persevere; I will succeed; I

Inacertain group of rabbits, the presence of yellow fur is the result of a homozygous reces- sive condition in the biochemical pathway producing hair pigment. I

What definition would justify the following statement? If T is the midpoint of segment RS then, Segment RT is congruent to segment TS.. Definition of Angle Bis

What is 8 divided by 4,360

A rectangular lap pool measures 80 feet long by 20 feet wide if it needs to be filled to 48 and each cubic foot hose 7.5 gallons how many gallons will it take t

How long will it take a bus traveling at 60 mph to catch up to a car traveling at 40 mph if that Car had a one and a half hour Headstart

Select the correct answer. Which element is more reactive than rubidium (Rb)? A. aluminum (Al) B. cesium (Cs) C. strontium (Sr) D. beryllium (Be)

can snow have viscosity?

who is allow to change or modify the stay-at-home order