dalesydney113
dalesydney113 dalesydney113
  • 30-03-2017
  • Mathematics
contestada

Use the quadratic formula to solve 2y2 + 6y – 8 = 0.
A {–4, –1} B {4, –1} C {–4, 1} D {4, 1}

Respuesta :

Аноним Аноним
  • 31-03-2017
y = [-6 +/- sqrt(6^2 -4*2*-8)]  /  2*2
  =  (-6 +/-  sqrt 100) / 4
   = (-6+10) / 4  , (-6-10) / 4
   =  (1 , -4)

the answer is C
Answer Link

Otras preguntas

Which statement is NOT true? a.All isosceles triangles are also equilateral triangles. b.All equilateral triangles are also isosceles triangles. c.Obtuse triang
What are all of the possible answers for the following question: What four digit numbers have a nine as the second number and a nine as the last number?
cathode rays wave shown to be a stream of _______? protons electrons neutrons quarks
what is the primary purpose for the receptor proteins located within the cell
what are the three rules that govern the filling of atomic orbitals by electrons
the area of a rectangular park is 3/5 square mile. The length of the Park is 7/8 mile. What is the width of the park?
what is 5 subtract 1 2/3
In which southern city did television cameras capture "Bull" Connor's police force turning dogs and fire hoses against peaceful civil rights marchers? A. Jackso
What do the polar bears, reindeer, and shrubs that live in a single area make up?
the prices of backpacks are $22, 16, 39, 35, 19, 34, 20 and $26. how do i find the mean absolute deviation of the prices?