crybchw
crybchw
08-06-2014
Mathematics
contestada
how do you describe the roots of 9y² - 6y + 5 = 0?
Respuesta :
konrad509
konrad509
08-06-2014
[tex]9y^2- 6y + 5 = 0\\ 9y^2-6y+1+4=0\\ (3y-1)^2+4=0\\ (3y-1)^2=-4\\ y\in \emptyset [/tex]
Answer Link
Lilith
Lilith
08-06-2014
[tex]9y^2 - 6y + 5 = 0 \\ \\a=9, \ b= -6 , \ c=5 \\ \\\Delta =b^2-4ac = (-6)^2 -4\cdot9\cdot 5 = 36 -180 = -144 \\ \\ If\ \Delta <0, \ then \ roots\ are \ imaginary \ (non-real)[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 43+ )
Otras preguntas
How did conquistadors interact with the Aztec and the Inca?
if f(x)=x^2 and g(x)=x-1 then f(g(x))=?
need help with math
Explain the Energy transformation involved in the process. a. Carbon dioxide becomes carbohydrates in leaves b. Sunlight becomes the color of sunflower c. water
After you ask some of the patrons to leave the venue, others from the group start to get upset. They are getting more aggressive and you do not think you can ha
y+3x=4 2x-2y=-21 use the substitution method
Where it says answer was what I put and said it was wrong
Somebody help me please! How many electrons does sodium gain or lose? 24 points!
What’s the answer to 58.3 x 89
the length of a rectangle is 50 meters. This is 6 meters more than twice the width. find the width
