1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fiasKO [112]
3 years ago
5

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

Mathematics
1 answer:
lina2011 [118]3 years ago
3 0

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

You might be interested in
A(n)=3/2(-2)^(n-1). What is the 3rd term in the sequence?
Angelina_Jolie [31]

Answer:

6

Step-by-step explanation:

Substitute n for 3

A(n) = 3/2(-2)^(n-1)

A(3) = 3/2(-2)^(3-1)

A(3) = 3/2(-2)²

A(3) = 3/2(4)

A(3) = 12/2

A(3) = 6

3 0
3 years ago
Read 2 more answers
Solve. x + 3y = 16 y = 7
nasty-shy [4]

Answer:

x = -5, y= 7. You can check this yourself by plugging in the numbers.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Continue the following pattern; describe the eighth figure in this pattern a. 49 small squares forming a larger 8 by 8 square b.
olga2289 [7]

Answer:

l think the answer is B

Step-by-step explanation:

The eighth patern should give the result 81

7 0
3 years ago
Sketch the graph of each line
adoni [48]

Answer:

(0,5) (1,0)

Step-by-step explanation:

Place your first dot on the 5 (0,5) of the y-axis (The one that is vertical) from there count down the line one value at a time until you have counted DOWN 5 times. Go to the right once and place another point there (1,0). Then draw a straight line that connects those two points.

6 0
3 years ago
Identify holes in the graph of the function.
snow_lady [41]

Answer:     x = 0

Step-by-step explanation:

The hole in the graph (a discontinuity) exist where the function doesn't exist. Because anything divided by zero is undefined, then the function would not exit at 0, thus having a hole/discontinuity.

7 0
4 years ago
Other questions:
  • A particular computer takes 11 minutes to download a 33 minute TV show. How long will it take a computer to download a one and a
    11·1 answer
  • Sarah normally earns £600 each month. In December she is given a bonus of 1/5 of her normal pay. How much will she now earn this
    12·2 answers
  • PLZ help 50 points and brainleist Which expression shows the result of applying the distributive property to −2(1/3 x− 1/5)
    14·2 answers
  • 25% of X<br> (a) 0.25x<br> (b) 0.25 / x<br> (c) 0.25 - x<br> (d) 0.25 + x
    10·2 answers
  • 3. Twelve coworkers go out for lunch together and order three pizzas. Each
    13·1 answer
  • As part of a holf-marathon route, Charlie
    7·1 answer
  • The question is in da image! ty its from Khan academy btw if that helps :)
    10·2 answers
  • Two boys want to balance a seesaw perfectly. One boy weighs 240 pounds and is sitting four feet from the fulcrum. The other boy
    12·1 answer
  • What number is 40% of 720 I need work shown please show your work and don’t make it tricky thank you
    11·1 answer
  • X^3+ 6 = 33 solve for variable
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!