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mash [69]
2 years ago
13

Does the quadratic function

Mathematics
1 answer:
const2013 [10]2 years ago
4 0

Answer:

[0] real zeros

Step-by-step explanation:

You can use the discriminant of the quadratic formula which is b² – 4ac to determine the # of real zeros by knowing that:

  • 2 real zero(s) occur when b² – 4ac > 0.
  • 1 real zero(s) occur when b² – 4ac = 0.
  • 0 real zero(s) occur when b² – 4ac < 0.
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Please help me 7th grade
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Answer:

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Step-by-step explanation:

His elevation decreased by 80 each hour. Since he was walking for 4 hours, the equation would be

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2 years ago
(07.05)
Llana [10]

Answer: n = -2

Step-by-step explanation:

3n +2(n + 2) = 9n + 12

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(subtract 4 from both sides)

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3 years ago
12.5% of a number is 25, find the number
tankabanditka [31]

Answer:

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Step-by-step explanation:

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Changing 12.5% into decimal would be 0.125

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Divide both sides by 0.125 to make x the subject :

x = 25 ÷ 0.125

x = 200

To check we can substitute this value into the question :

12.5% of 200 = 25

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