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Alik [6]
3 years ago
9

What is the discriminant of the quadratic equation 9x^2+5x-9=0

Mathematics
1 answer:
dangina [55]3 years ago
4 0

Answer:

Δ = 349

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 ) , then the discriminant is

Δ = b² - 4ac

9x² + 5x - 9 = 0 ← is in standard form

with a = 9, b = 5 , c = - 9 , then

b² - 4ac

= 5² - (4 × 9 × - 9)

= 25 - (- 324)

= 25 + 324

= 349

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Answer:

C) They're equally as likely.

Step-by-step explanation:

Chance of snow in eastern Canada: 0.4

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Compare: <em>0.4 ₙ ²/₅</em>

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4 years ago
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4 years ago
Malia is placing a barrier around the edge of a circular path with a diameter of 13 meters. The barriers are in lengths of 2.5 m
Bezzdna [24]

Answer:

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Step-by-step explanation:

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Since we know that circumference of a circle equals 2\pi r, where,

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Since we have been given the diameter of the circular path, so let us divide our given diameter by 2 to find radius of our circular path.

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Answer:

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Step-by-step explanation:

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