Kristank258
Kristank258 Kristank258
  • 02-06-2021
  • Mathematics
contestada

If the function f (2) 3x2 + bx + 2 has no real roots, which of the following could be the value of b? -7, -1, 8, 0
10​

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-06-2021

Answer:

b could be -1 or 0

Step-by-step explanation:

f(x) = 3x^2 +bx+2

if it has no real roots, the discriminant must be less than zero

b^2 -4ac <0

a=3  b=b  c=2

b^2 - 4(3)(2) <0

b^2 - 24 <0

b^2 < 24

Taking the square root of each side

b< 2 sqrt(6)  and b > 2 sqrt(6)

b could be -1 or 0

Answer Link

Otras preguntas

what are the steps of the hero's journey
How did the government use the Sherman Anti-Trust Act to end the Pullman Strike of 1894?
arlo has 17 bean bag animals.some are fuzzy. 9 bean bag animals are not fuzzy. how many animals are fuzzy
All of the following are volcanoes created from lava and ash except: a. Composite c. Shie
how did the kennedy administration know that the soviet union was putting ballistic missiles in cuba?
Select four words that will complete the following prefix: anti- . state aircraft freeze call gravity social
1/9 find the reciprocal
A doctor measures the flowrate in the ascending aorta and notices that the velocity has dropped substantially since the last measurement. Using your knowledge o
What is 3/5 equal to
write a money problem that shows money being added to and subtracted from a bank account then solve the problem