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

9x-12=5x-4 pls help

2 x 2 (: you can have the points :)

Write the coordinates of the vertices after a transition 5 units right S= U= T=

PSYCHOLOGY For this assignment, you are tasked with finding, taking, and posting a photo in your environment (inside or outside) that best reflects the informat

Can you draw a free body diagram of this for me?

the price of a wristwatch is $46.50 the sales tax rate is 5% to the nearest cent what is the total cost of the wristwatch including the sales tax

Is it impossible to increase the cost of an item by less than 1%

As opposed to freshwater animals, saltwater animals have a risk of this reaction due to the salt concentration in the water.Question options:Overflow of oxygenL

The slope of the line whose equation is 2x + 5y + 1 = 0 is0-2750-1/5O5/2

As opposed to freshwater animals, saltwater animals have a risk of this reaction due to the salt concentration in the water.Question options:Overflow of oxygenL