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
finlep [7]
3 years ago
5

Use the discriminant to determine how many X intercepts the graph of the equation has

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0
<span> The quadratic formula says that any quadratic equation of the form ax^2 + bx + c, then
x=(-b ± √(b^2 - 4ac))/2a, and so because of the square root, theres obviously going to be no x-intercepts if b^2 - 4ac is negative, one x-intercept if its zero, or two if its positive. So to calculate the discriminant, which is whether it has an intercept, no intercepts or two intercepts is:
∆=b^2 - 4ac, where delta, the greek equivalent of D, is used to represent the discriminant.
In the above equation a=-4, b=3 and c=-2, so
∆=3^2 - 4*-4*-2=9 - 32=-23, so because the discriminant is negative, then there are no x-intercepts.








This is from
https://answers.yahoo.com/question/index;_ylt=A0LEVvH2KJ5Y8UMAhHwPxQt.;_ylu=X3oDMTByMjB0aG5zBGNvbG8D...
</span>
You might be interested in
Which shape is a Parallelogram?
mariarad [96]
The top left is the correct answer, because the sides are parallel.

Hope this helps!
5 0
3 years ago
If I roll a standard number cube (labeled 1 to 6), and I roll it twice, what is the probability that I roll an odd number each t
suter [353]

Answer:

It is a 50% chance that you will roll and odd number each time.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Can anyone help me with this?
Neko [114]

Answer:

the answer would be 5

Step-by-step explanation:

because if there was 15 truth or false questions that would be 45 points and if there where 5 essay questions that would be 55 questions 45+55=100 points and 15+5 questions is 20 questions so there would be 5 essay questions.

3 0
2 years ago
The volume of a cylinder is 770 cm. It's height is 5 cm. Find its approximate radius.
Alinara [238K]

Hey there,

The equation for the volume of a cylinder is V = πr²h.

The first step into finding the radius is to plug in what you already know into the equation:

  • 770 = πr²5

We divide both sides by 5:

  • 154 = πr²

Now we divide both sides by π:

  • 49.0197224723 = r²

Finally we just do the square root of 49.0197224723:

  • 7.0014086063 = r

The radius therefore would be about 7cm.

Hope I helped,

Amna

3 0
3 years ago
A hot air balloon is 200.6 feet above land. After 5 minutes, the parasail is at 120.8 feet above land. What is the change in hei
Darina [25.2K]

Answer:

-79.8

Step-by-step explanation:

The change can be found by subracting the ending distance from the beginning distance.

In this case, its 200.6-120.8= 79.8

It is negative because the distance in the end became lower than the beginning distance.

Hope this helps!

5 0
2 years ago
Other questions:
  • A circular piece of metal has a radius of 3.5 meters. The metal sells for $3.25 per m². What is the total cost of the circular p
    9·2 answers
  • What are the comman factors of 4 and 8
    8·1 answer
  • I have $350 to spend on a purse. Sales tax is 6%. If there is a purse I want that is $450, can I buy it if I have a coupon for 2
    9·1 answer
  • Jimmy is riding his bike at a speed of 5.5m/s. how long will it take him to go 2 miles?
    8·1 answer
  • Consider the problem of utility over territory. Let’s start simply
    14·1 answer
  • You were assigned 225 pages to read. You finished ¼ of them. How many pages do you have left to read?
    15·2 answers
  • Please i’ve been stuck on this for days i need help
    13·1 answer
  • Gggggggggggggghhhhhhhhhhhhhiiiiiiiiii
    7·2 answers
  • Show that (4p^2-3q)^2+48p^2q =(4p^2+3q^2)​
    11·1 answer
  • D + -4 = 12<br>how do i find d?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!