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victus00 [196]
3 years ago
10

What does it mean to find the discriminant of an equation such as x+18 = -x^2

Mathematics
1 answer:
o-na [289]3 years ago
5 0
  • Calculation of the discriminant of the polynomial : 18+x+x²
  1. Applying the formula to calculate the discriminant Δ=b²−4 ⋅ a ⋅ c with :     a = 1, b= 1, c = 18
  2. Δ = (1)² − 4 ⋅ (1) ⋅ (18) = 1 −72 = −71  
  3. The discriminant of the polynomial 18+x+x² is equal to −71

Hope this helped!

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Pleas help me for 20 points
Montano1993 [528]

Answer:

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Write 3 decimals between 5.417 and 5.418 in Order from least to greatest
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3 years ago
The Eiffel Tower in Paris, France. Lizbeth is 5.5 feet tall. She looks up at an angle of elevation of 72° to see the top from 31
garri49 [273]

Answer:

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Step-by-step explanation:

Please check the attached graph.

From the diagram, it is clear that Lizbeth is 5.5 ft tall, seeing the top from 318 feet away, making an angle of elevation to be 72⁰.

The diagram makes a right-angled triangle.

  • Given the angle = Ф = 72⁰
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Pythagorean Theorem:

For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:

c=\sqrt{a^2+b^2}

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c=\sqrt{5.5^2+318^2}

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3 0
2 years ago
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BigorU [14]
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8 0
3 years ago
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IRISSAK [1]

Answer:

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Step-by-step explanation:

First, figure out the height.  Since it's an equilateral triangle, it would be

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Now we can get the area.

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8 0
3 years ago
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