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nadezda [96]
2 years ago
5

3x^2+15x+25=−3x−2whats the discrimate?​

Mathematics
2 answers:
Zepler [3.9K]2 years ago
8 0

Answer:

The discriminate is 0

Step-by-step explanation:

Hope this helps!

Vaselesa [24]2 years ago
4 0

Answer:

- 315

Step-by-step explanation:

Given a quadratic equation in standard form ax² + bx + c : a ≠ 0

Then the discriminant is

Δ = b² - 4ac

Given

3x² + 15x + 25 = - 3x - 2 ( subtract - 3x - 2 to both sides )

3x² + 18x + 27 = 0 ← in standard form

with a = 3, b = 18 and c = 27, then

b² - 4ac = 3² - (4 × 3 × 27) = 9 - 324 = - 315

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Step-by-step explanation:

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Answer:

See below ~

Step-by-step explanation:

<u>Given</u>

  • Maitri and Aabhas do a work in 12 hours
  • Aabhas and Kavya do the work in 15 hours
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<u>Solving</u>

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<u>Take Equation 1 and rewrite it so that it is equal to x.</u>

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<u>Take Equation 2 and rewrite it so that it is equal to z.</u>

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<u>Now, substitute these values in Equation 3.</u>

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<u></u>

<u>Substitute the value of y in Equation 1.</u>

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<u>Substitute the value of y in Equation 2.</u>

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  • z = <u>11.5 hours [Kavya]</u>

<u></u>

<u>Add the values of x, y, and z together.</u>

  • x + y + z
  • 8.5 + 3.5 + 11.5
  • 12 + 11.5
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Step-by-step explanation:

{ - z}^{6}  \\ z =  - 3

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