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Alex Ar [27]
4 years ago
11

Does the parabola with equation x2 + 5x +9=0 have real or imaginary roots?

Mathematics
1 answer:
vesna_86 [32]4 years ago
7 0

Answer:

b2-4ac , ans is negative . Should have no real roots .

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4 0
3 years ago
A bird flies a velocity of 8 m/s ñ. How long does it take the bird to travel a horizontal distance of 400 meters?
sergejj [24]

Answer:

50 seconds

Step-by-step explanation:

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6 0
4 years ago
What is the slope of a horizontal line?
Oksana_A [137]

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Undefined. Or if you're talking about rise over run, horizontal is the run.

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
Some help! i need someone to answer this for me!
vredina [299]

Answer:

-27

Step-by-step explanation:

Substitute everything:

6^2/-4+ 6^2/-2

36/-4+36/-2

-9+-18

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7 0
3 years ago
Solve this sumutaneous equation<br> 2x-5 y=9<br> 3x+4y=2
Alla [95]

Answer:

<h2>x = 2 and y = -1 → (2, -1)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}2x-5y=9&\text{multipy both sides by 4}\\3x+4y=2&\text{multiply both sides by 5}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}8x-20y=36\\15x+20y=10\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad23x=46\qquad\text{divide both sides by 23}\\.\qquad x=2\\\\\text{put it to the second equation}\\\\3(2)+4y=2\\6+4y=2\qquad\text{subtract 6 from both sides}\\4y=-4\qquad\text{divide both sides by 4}\\y=-1

8 0
3 years ago
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