le3letCelindajay le3letCelindajay
  • 08-04-2017
  • Mathematics
contestada

What is the value of the discriminant for the quadratic equation –3 = –x2 + 2x? Discriminant = b2 – 4ac

a. -8
b.4
c.8
d.16

Respuesta :

Yumiching Yumiching
  • 08-04-2017
answer is D because -x^2+2x+3=0 then b is 2 -4 a is-1 c is 3 get 4-4(-1)(3)=0 get answer 16.
Answer Link
gitgud
gitgud gitgud
  • 10-04-2017
The Correct answer is D.) 16 
Answer Link

Otras preguntas

Which condensed structural formula represents an unsaturated compound?(1) CH3CHCHCH3 (2) CH3CH2CH3 (3) CH3CH3(4) CH4
What are the advantages for plants having a vascular systems?
If sin θ = 0.57 then sin (π-θ)=?
where does the blood pick up oxygen
solve for x: 2x^2-2x-24=0
find all possible value of the given variable 1.h²+5h=02.z²-z=03.m²+13m+40=04.z²-3z=05.q²+7q=06.k²+2k=07.x²-3x-70=08.q²+7q-60=09.z²+9z-36=010.d²-13d+22=0
Find the constant of variation for this equation. A=(1/2)(b)(h) Write your answer in decimal form.
Which element reacts spontaneously with 1.0 M HCl(aq) at room temperature?(1) copper(2) gold (3) silver(4) zinc
What is the radius of the circle given by the equation below?
Solve x2-14x+21=0 by completing the square