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densk [106]
3 years ago
10

Please help!! Will give brainliest and more points! (Click on the photo)

Mathematics
1 answer:
schepotkina [342]3 years ago
5 0

Answer:

Its the last one

Step-by-step explanation:

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PLEASE HELP FOR A BRAINLIEST!!!! Create your own example and explain how to solve Quadratic Equation using Quadratic Formula. Wh
SVETLANKA909090 [29]

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)

8 0
3 years ago
How many solutions does the system of equations have?
sertanlavr [38]
Y = 4 x + 3 
<span>y = 4 x + 3/2 
</span>no solution :) hope this helps
7 0
3 years ago
Read 2 more answers
PLEASE HELP MEH ON THIS ASAP!!!!
andrew11 [14]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is 2 divided by the square root of zero
arsen [322]
0 because the square root of zero is zero and two divided by zero is zero
4 0
3 years ago
Ann made a 33-step staircase using 1818 toothpicks as shown in the figure. How many toothpicks does she need to add to complete
malfutka [58]
You would take 1818÷33=55.09

55.09 is how many toothpicks it took for each step made

Then you would take 55.09×55=3029.95

You can make sure this is correct by taking 55.09×33=1817.97 which would actually be 1818 because you had to round it up 
5 0
2 years ago
Read 2 more answers
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