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
erma4kov [3.2K]
3 years ago
15

Let 3x^2+kx+4. determine all values of k such that the quadratic equation f(x) =0 has one real root

Mathematics
1 answer:
user100 [1]3 years ago
7 0
//I'll use the discriminant rule for this.
b^2 - 4ac = 0 when one real root

Therefore, k^2 - 4*3*4= 0
k^2 = 48
k= +-4√3
You might be interested in
If two circles are externally tangent, it is not possible to draw an external tangent line. True/False
kotykmax [81]

Answer:

I think its true

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The diameter of a cylindrical construction pipe is7ft. If the pipe is 36ft long, what is its volume?
Svetradugi [14.3K]

Question:

The diameter of a construction pipe is 7ft. If the pipe is 35ft long, what is the volume. (Use 3.14 for pie and round your answer to the nearest cubic foot.)

Answer: V=pir^2h V=3.14*3.5^2*35 V=1346 cu ft

Not fully sure....

But it should be right...

6 0
2 years ago
18√2 - 2√50 I need to know
MAXImum [283]

Answer:

8√2

Step-by-step explanation:

18√2 - 2√50 = 18√2 - 2√(2*25)=18√2 - 2*5√2= 18√2 - 10√2= 8√2

8 0
3 years ago
Read 2 more answers
Allison ate 7 of her 20 apples. What percent of the apples did she eat?
Brrunno [24]

Answer:

 Percentage of apples ate by Alison = 35 %

Explanation:

  Percentage of a process = (Number of process in favor / Total number of processes) x 100

  Total number of apples in the hand of Alison = 20

  Total number of apples ate by  Alison = 7

  Percentage of apples ate by Alison = ( Total number of apples ate by  Alison/Total number of apples in the hand of Alison) x 100

                                =\frac{7}{20} *100=35%

  Percentage of apples ate by Alison = 35 %

3 0
3 years ago
A baseball diamond is a square with sides of 90 ft What is the straight Distance between 1st and 3rd bases to the nearest thenth
yuradex [85]

Answer:c=127.3ft

Step-by-step explanation:Divide the square into two on the line between 1st and 3rd base, you now have two right triangles, pick one. The triangle has two legs and a hypotenuse, the length of the hypotenuse is the distance you need. The legs are 90ft long and you need to use the Pythagorean theorem. 90 squared plus 90 squared equals c squared, so 8100+8100=c^2, 16200=c^2, c=127.27922061

5 0
3 years ago
Other questions:
  • Given that P = (2, 9) and Q = (4, 14), find the component form and magnitude of vector PQ.
    5·1 answer
  • How much money must be deposited now in an
    13·1 answer
  • What is the value of x in the proportion below? 8/72 = x/36
    8·2 answers
  • In Portland, the tax on a property assessed at $320,000 is $3,840. If tax rates are proportional in this city, how much would th
    10·1 answer
  • Right triangle XYZ, with vertex _Y at (-3,0), is rotated clockwise 180° about the origin. Which of the following rotations is
    12·1 answer
  • 1) Classify each function as an exponential growth or an exponential decay. 1 point<br> f(x) =1/2
    10·1 answer
  • There are 6 yellow hexagons 2 red trapezoids and 9 green triangles how many flowers could you make if they were changed 30 yello
    11·1 answer
  • I need help with 2 of these math question
    7·2 answers
  • PLEASE PLEASE HELPPPP
    12·1 answer
  • gabi and mina both okay a single player game where they try to survive as many rounds as possible without crashing their car int
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!