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
natka813 [3]
3 years ago
14

PLEASE HELP FOR A BRAINLIEST!!!! Create your own example and explain how to solve Quadratic Equation using Quadratic Formula. Wh

at part in the Quadratic Formula is the discriminant and how do you know the number of solutions based on the value of the discriminant? Pls pls help I need YALLS brains
Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
8 0

Step-by-step explanation:

1. Create your own example and explain how to solve Quadratic Equation using Quadratic Formula.

The quadratic formula is used to solve quadratic equations. It is shown as   x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

A quadratic equation is generally shown in the form of ax^{2} +bx + c = 0

For example, if you saw the equation  7x^{2} + 3x + 20 = 0

7 would be a, 3 would be b, and 20 would be c.

To solve the equation above, you would fill in the quadratic formula as such, x=\dfrac{-3\pm\sqrt{(3)^2-4(7)(20)}}{2(7)}

Then you could solve for x.

2. What part in the Quadratic Formula is the discriminant?

The discriminant is the equation under the square root on the quadratic formula, b^{2} - 4ac

It is tells us whether there are two solutions, one solutions, or no solutions.

3.  How do you know the number of solutions based on the value of the discriminant?

To know the number of solutions based off of the value of the discriminant, you need to plug in your values. Using the example quadratic equation, 7x^{2} + 3x + 20 = 0

We will plug the values into the discriminant.

3^{2} - 4(7)(20) = -551

Now, if the discriminant is positive it has two real solutions. If the discriminant is zero the equation has no real-number solutions. And finally, if the discriminant is negative, the equation has one real solution. Because our discriminant is -551, the example equation has one real solution.

Hope this helps! (Please consider Brainliest)

You might be interested in
How many license plates in Ontario were registered between the following licence plates? As the question is asking for plates be
Liono4ka [1.6K]

The number of plates is an illustration of permutation and combination

The number of plates is 2592

<h3>How to determine the number of plates</h3>

The range is given as: AVVJ 144 To: BVNP 199 (exclusive)

From the range, we have the following highlights:

  • The first letter can be either A or B (i.e. 2 letters)
  • The second letter can be only V (i.e. 1 letter)
  • The third letter can be from W to M (24 letters)
  • There are 54 numbers between 144 and 199

The number of plates (n) is then calculated as:

n = 2 * 1 * 24 * 54

Evaluate the product

n = 2592

Hence, the number of plates (n) is 2592

Read more about permutation and combination at:

brainly.com/question/12468032

8 0
2 years ago
X-7/4 =-2 I need helpp
Gwar [14]

Answer:

x = -1

Step-by-step explanation:

x-7/4=-2

x-7=-8

x=-1

7 0
3 years ago
. How many questions i gotta answer to talk with people.?
nadezda [96]

Answer:

100

Step-by-step explanation:

8 0
3 years ago
Thecube of twice a number
lubasha [3.4K]
<h3>Answer:</h3>

The cube of twice a number is 2x^3.

4 0
3 years ago
(5) I already know the answer but I'm pretty sure you guys would like some points so just trying to figure it out
Andrews [41]

Answer:

I'm going to imagine the answer is math

3 0
2 years ago
Other questions:
  • A study is planned to compare the proportion of men who dislike anchovies with the proportion of women who dislike anchovies. Th
    7·1 answer
  • Please help me <br>by the way this is a 2 mark question from mathswatch​
    5·1 answer
  • 30 pts.!!!!
    10·1 answer
  • Grant walks 4/5 of a mile in 1/4 hour. What is his ratio of miles to hours in simplest form?
    15·1 answer
  • A blueprint for a building includes a rectangular room that measures 3 inches long and 5.5 inches wide. The scale for the bluepr
    9·1 answer
  • Calculate average rate of change between n=1 and n= 11
    9·2 answers
  • Which point is located at (0,-7)?​
    5·2 answers
  • How to make a 70% into a fraction
    7·1 answer
  • Heather solved this problem:
    6·1 answer
  • HELP ASAP BEING TIMED! If Triangle J K L is congruent to Triangle B C A, which statement must be true?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!