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Lina20 [59]
3 years ago
7

A quadratic equation has exactly one real number solution. Which is the value of its discriminant?

Mathematics
2 answers:
statuscvo [17]3 years ago
7 0

Answer: 0

Step-by-step explanation:

We know that if the number of real solutions the quadratic equation depends on the discriminant:-

  • If d = 0, then equation will have exactly one real number solution .  
  • If d > 0 then equation will have exactly two real number solutions.
  • If d < 0  then the quadratic equation will have no real solutions. There will be two complex number solutions.

Therefore, if a quadratic equation has exactly one real number solution.

Then, the value of its discriminant= 0.

Rufina [12.5K]3 years ago
3 0

Answer:

the answer is 0

Step-by-step explanation:

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Answer:

Let C be the cost price of the article. Then:

C(1+30%)=marked price

So:

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If the article is then marked down 35%, then its’ price would be:

1.3C(1–35%)=1.3C(.65)

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A medicine is decaying at a rate of 5% per hour. If there were initially 1000mg of the medicine, how much is left after 4 hours?
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Answer:

  814.5 mg remain after 4 hours

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The multiplier of the original quantity is 1 -5% = 0.95 for each passing hour. The amount remaining after x hours is ...

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3 years ago
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Answer:

<u>405</u>

Step-by-step explanation:

<u>Given</u>

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<u>Solving</u>

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