needhelpwithmath23 needhelpwithmath23
  • 13-08-2018
  • Mathematics
contestada

select TWO values of x that are roots

select TWO values of x that are roots class=

Respuesta :

gmany
gmany gmany
  • 20-08-2018

[tex]x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a};\ x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}\\\\y=x^2+3x+5\\\\a=1;\ b=3;\ c=5\\\\b^2-4ac=3^2-4(1)(5)=9-20=-11\\\\x_1=\dfrac{-3-\sqrt{-11}}{2\cdot1}=\dfrac{-3-\sqrt{-11}}{2}\\\\x_2=\dfrac{-3+\sqrt{-11}}{2}[/tex]

Answer: A and B.

Answer Link
pokemonsnowgurl
pokemonsnowgurl pokemonsnowgurl
  • 09-04-2019

Answer:

answers are C and F above on Apex

Step-by-step explanation:

Answer Link

Otras preguntas

How many times will 24 go into 213
Find the zero of f(x) -2/3 x-12
What is seven less than twice a certain number n?
During a controlled experiment, scientist isolates and tests. A. a conclusion B. a mass of information C. a control group D. a single variable
How many years did it take the Black Death to spread from Sarai to cairo?
9 ten thousands / 10 in unit form
A book 500 pages (500 sheets of paper) long is 2.25 inches thick. If each cover is 0.125 inches thick, how thick is each sheet of paper? Without calculating the
Does Anyone Know the Surface Areas of These 2 Triangular Prisms?
if a cube has a volume of 384 cubic centimeters, how long is one side of the cube?
What is the correct form of the verb "empezar" in the following sentence? Ella __________el examen pronto.