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taurus [48]
3 years ago
14

Best answer gets Brainliest!!!

Mathematics
1 answer:
BabaBlast [244]3 years ago
7 0

Answer:

b i think

Step-by-step explanation:

because you divide y by 2 to get x

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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
Solve for x. Round to the nearest tenth, if necessary.<br> P<br> 29°<br> х<br> Q<br> -6.6<br> R
Margarita [4]

Answer:

The x in this question is 151 degrees

7 0
3 years ago
Read 2 more answers
If two angles are suplementar ang congruent, the measure of each angle is 90 degree true or false
Westkost [7]

True, bc they add up to 180 and are the same size.

3 0
3 years ago
Find the perimeter of the shape in the image <br> A) 8cm<br> B) 12cm<br> C) 16cm<br> D) 20cm
ivanzaharov [21]

Answer:

C. 16 cm

Step-by-step explanation:

Top side: 2 + 4 = 6

Right side: 1 + 1 = 2

Bottom: 2 + 4 = 6

Left side:  1 + 1 = 2

6+6+2+2 = 16 cm.

4 0
2 years ago
Solve the equation for a.
nataly862011 [7]

Answer:

a=-7.68

Step-by-step explanation:

3a+13.61=-9.43

               -13.61

_____________

               -23.04

3a=-23.04

-23.04/3= -7.68

7 0
3 years ago
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