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Alex73 [517]
2 years ago
7

Anser and i'll gige brainly

Mathematics
1 answer:
Vilka [71]2 years ago
7 0

Answer:

b² - 4ac > 0

Step-by-step explanation:

Conditions for the discriminant

• If b² - 4ac > 0 then 2 real and distinct roots

• If b² - 4ac = 0 then 2 real and equal roots

• If b² - 4ac < 0 then no real roots

Here the roots are x = 0 and x = 4

That is 2 real and distinct roots , then

b² - 4ac > 0

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Answer:

Step-by-step explanation:

B=3x-2

C=12x+2

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Now; we know, A+B+C+D=360 deg.

=>A=360-(B+C+D)

  =360-(3x-2+12x+2+3x-2)

  =360-(18x-2) ----[1]

B+C=180 deg. (linear pair)

=> 3x-2+12x+2=180

=> 15x=180

=> x=180/15

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subsitute [2] in [1];

=> A= 360-(18x-2)

   = 360-(18*12-2)

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So, the correct answer is (D).

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