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

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

A physical reaction is a process in which one or more reactants change into one or more products with different properties. Please select the best answer from t

Questing means to envision other possible outcomes to a problem true or false

What is the number of moles in 15.0 g AsH3?

the owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 L from a fertilizer

PLEASE HELP, HISTORY!!!! What was Herbert Hoover and the Food Administration do in WWI?

a large increase in gas prices creates a demand for cars with good gas milage. It takes months for car companies to make these cars. How do you describe this ma

Match each object to its description: A. Coma of a comet B. Comet tail C. Oort cloud Haze surrounding a nucleus Created by solar wind. Hypothe

How does a comet change when it comes close to the sun

Ronald is concerned about exposure to antibiotics and hormones in our food supply. Which type of wellness does this affect?