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ExtremeBDS [4]
3 years ago
9

What is the discriminant of the polynomial below 4x^2-20x +25

Mathematics
1 answer:
svetlana [45]3 years ago
5 0

Answer:

The discriminant D=0

Step-by-step explanation:

For the duadratic polynomial ax^2+bx+c the discriminant is

D=b^2-4ac.

In your case, for the polynomial 4x^2-20x+25,

  • a=4;
  • b=-20;
  • c=25;
  • D=(-20)^2-4\cdot 4\cdot 25=400-400=0.
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Serga [27]

Answer:

Step-by-step explanation:

Jonah sister is 10 years old. Jonah is 8 years younger than twice hos sister age

j = 2s - 8

this is the equation.

You can solve it by substituting in 10 for s, because sister is 10 years old.

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Two birds sit at the top of two different trees. The distance between the first bed and a birdwatcher on the ground is 34 feet t
stira [4]

Answer:

Step-by-step explanation:

The given triangle is a right angle triangle.

The distance between the first bed and the bird watcher on the ground represents the opposite side of the right angle triangle.

The distance between the birdwatcher and the second bird is 47 feet. This represents the hypotenuse of the right angle triangle. To determine the angle of depression, x degrees, we would apply the Sine trigonometric ratio which is expressed as

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3 years ago
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Answer:

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use distributive property and you get your answer :)

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3 years ago
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