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2 years ago

What is the value of the discriminant for the quadratic equation –3 = –x2 + 2x?

Mathematics

2 answers:

Leni [432]2 years ago

3 0

Answer:

Step-by-step explanation:

The quadratic equation –3 = –x2 + 2x must first be rewritten in standard form:

x^2 - 2x - 3 = 0

or:

1x^2 - 2x - 3 = 0

The coefficients a, b and c are thus {1, -2, -3}, and therefore the discriminant, b^2 - 4ac, is

(-2)^2 - 4(1)(-3), or 4 + 12 = 16

emmainna [20.7K]2 years ago

3 0

Answer:

d) 16

Step-by-step explanation:

edge 2020-2021

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nignag [31]

Step-by-step explanation:

0.416666666666666666666

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3 years ago

Please help me with this. I forgot the formula for this

Lapatulllka [165]

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3 years ago

What are the values of rand s?

Vitek1552 [10]

Answer:

s=15

r=10

Step-by-step explanation:

What we know)

The measure of a line is 180º

If two parrel lines are cut by a transversal, the corresponding angles are congruent (corresponding angles postulate)

What we can figure out)

The angle measuring 3r+3s and 6r+3s are on the same line, so

3r+3s+6r+3s=180

3r+3s and 6r+s are corresponding, so

3r+3s=6r+s

Solve)

Now, we just need to solve the equations.

3r+3s+6r+3s=180 can be condensed into 9r+6s=180 by combining like terms. Then, you can divide by 3 to get 3r+2s=60

3r+3s=6r+s can be turned into 2s=3r by subtracting 3r and s.

So we have 3r+2s=60 and 2s=3r

We can substitute 2s for 3r

2s+2s=60

4s=60

s=15

Then, we can plug s=15 into the equation

2(15)=3r

30=3r

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7 0

2 years ago

Question in attachment

maxonik [38]

Solution:

When, you rotate a picture by 180°, we rotate it by half of a full circle.
The first picture is the original picture.
The second picture is the image when it is rotated by 90°.
The third picture is the images when, it is rotated once more by 90°. This image is the rotation of the image around P by 180°.
So, the answer will be option A.

Answer:

Option A.

Hope you could understand.

If you have any query, feel free to ask.

8 0

2 years ago

105498199/1000000000

tamaranim1 [39]

105498199/1000000000
it will be= 0.105498199

4 0

3 years ago

Read 2 more answers