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

how did ordinary citizens play a role in spartan oligarchy?
How did Japan's relationship to the larger world change during its modernization process?
Joe earns $160 per week at a local market. He makes a payment of $12 per week for a new bike. He spends $75 each week on food an entertainment. Joe deposits the
If you hit a wall, will the force that you exert on the wall be greater than, or less than, or equal to the force that the wall exerts on you Please please exp
After the passage of the Seventeenth Amendment, how many senators were elected to serve each state?
Which describes a major advantage of steamboats over other vessels
After the passage of the Seventeenth Amendment, how many senators were elected to serve each state?
Let f(x) = 9x - 2 and g(x) = -x + 3. Find f(g(x)). I think it's -9x-2
What is the difference between 3/12 and 5/8
bryan has 3 nickels ,3 dimes and 2 quarter. what fraction of the coins is either a dime or a quarter