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soldi70 [24.7K]
3 years ago
8

Can some one please help me answer these questions

Mathematics
1 answer:
Vinvika [58]3 years ago
8 0

What questions? There are no questions lol

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Find the discriminant and the number of real roots for this equation.
Margaret [11]

Our discriminant is 0 so, 4x^2 + 12x + 9 = 0 has one real root.

Option C is correct.

Step-by-step explanation:

we need to find the discriminant and the number of real roots for the following equation:

4x^2 + 12x + 9 = 0

The discriminant is found by using square root part of quadratic formula:

b^2-4ac

where b =12, a=4 and c=9

Putting values:

=b^2-4ac\\=(12)^2-4(4)(9)\\=144-144\\=0

To find out the number of real roots using discriminant we have following rules:

  • if discriminant b^2-4ac >0 then 2 real roots
  • if discriminant b^2-4ac =0 then 1 real root
  • if discriminant b^2-4ac <0 then no real roots

Since our discriminant b^2-4ac is 0 so, 4x^2 + 12x + 9 = 0 has one real root.

Option C is correct.

Keywords: discriminant

Learn more about discriminant at:

  • brainly.com/question/8196933
  • brainly.com/question/9328925
  • brainly.com/question/4853862

#learnwithBrainly

6 0
3 years ago
Click on the least amount of rainfall.
Andreas93 [3]

The least amount is the smallest amount, 1/8.

5 0
3 years ago
In the morning Joaquin recorded a temperature of 82°F. The temperature decreased 6.5°F by the afternoon. What is the temperature
Elena-2011 [213]

Answer:

the temperature is 75.5

Step-by-step explanation:

82 degrees - 6.5 degrees is 75.5 degrees

8 0
3 years ago
Ramkin is going to flip a fair coin 100 times.
Gelneren [198K]

Answer:

50 times

Step-by-step explanation:

You are going to flip a coin 100 times. There are 2 sides. So, what you would do is divide 100 by two because there are two sides. There is a 50% chance that the coin will land on heads, and a 50% chance it will land on tails.

Please let me know if you have any more questions. Hope this helps!

3 0
3 years ago
What is 24xe if that's even a question i don't know if you know fell free to answer
Mkey [24]
I don’t really understand the question
7 0
3 years ago
Read 2 more answers
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