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maria [59]
3 years ago
5

State the value of the discriminant for the equation, 3x^2 + 7x + 3 = 0

Mathematics
1 answer:
Irina-Kira [14]3 years ago
7 0

Answer: 13

Step-by-step explanation:

If you remember the quadratic equation formula;

x=\frac{-b\frac{+}{}\sqrt{b^2-4ac}  }{2a}

You can easily extract what is under the root to find the discriminant.

b^2-4ac=?\\

a = 3

b = 7

c = 3

(7)^2-4(3)(3)\\49-36=13

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Please help and explain so I understand!!​
olga_2 [115]

Answer:

x=5

Step-by-step explanation:

4x^2-11=89

add 11 to both sides

4x^2=100

Divide 4 on both sides

x^2=25

Take the square root of both sides to eliminate the power of two from x

\sqrt{x^2} =\sqrt{25}

Simplify

x=5

8 0
2 years ago
ABCD is a parallelogram. if side AB=6x-10, side BC=4x-5, and side CD =3x+5, find the value of x
serg [7]

Answer:

x=5

Step-by-step explanation:

If ABCD is a parallelogram, then AB = CD

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3x/3 =15/3

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8 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
Alborosie

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6 0
2 years ago
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Viktor [21]

Answer:

28.27

Step-by-step explanation:

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3 0
3 years ago
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PLEASE ANSWER + BRAINLIEST!!!!
astra-53 [7]

Answer:

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8 0
3 years ago
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