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

There are 20 different amino acids what makes one amino acid different
SELECT ALL THAT APPLY. Which animals are invertebrates? starfish earthworms tunicates amphibians lancelets octopus crab grasshopper
Jeff has a job to tile a room 21 ft x 11 ft with 1 ft. square tiles. how many tiles does he need?
what is the area of this?
When speaking about the albino child, Selvam adopts a _____ tone in Nectar in a Sieve. Select all that apply. confrontational defensive empathetic hopeless
enter the mixed number as a fraction greater than one 3 2/5
Cocaine is an opiate. true or false
The top of Mount Everest is about 8,850 m. What would the approximate air temperature be at that altitude?
What is the wannianli calendar based on?
What is this? I need help