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

Calculate Medicare tax (1.45% of gross pay Gross Pay: $576.00
What frightens Malcolm and Donalbain into fleeing Scotland?
The following IUPAC name is incorrect. Explain why it is incorrect and give the correct IUPAC name. 2,2−dimethyl−4−ethylheptane a. The compound name is alphabet
Which is one way that sinkholes can form?
When justice black refers to Giboney v. Des Moines, which kind of reasoning is he using to support his argument?
Which substance is the base in the reaction?
What is the difference among these three words "kind", "sort" and "type"?
if f(x) = x to the 3rd power minus 2x to the 2nd power, what expression is equivalent to f(i)
What are emperor penguins considered a species ? Help!!
A major motor company displays a die-cast model of its first automobile, made from 9.00kg of iron. To celebrate its hundredth year in business, a worker will re