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malfutka [58]
3 years ago
10

3MIN LEFT PLEASE HELP ME FAST

Mathematics
1 answer:
Lapatulllka [165]3 years ago
5 0

226

...................................

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Which equation shows the quadratic formula used correctly to solve 5x2 + 3x – 4 = 0 for x?
vovikov84 [41]

Answer:

x=\frac{-3\pm\sqrt{(3)^2-4(5)(-4)}}{2(5)}

Therefore, Option 1 is correct.

Step-by-step explanation:

We have been given the quadratic equation:

5x^2+3x-4=0

If we compare it will general quadratic equation which is: ax^2+bx+c=0

Here, a=5,b=3 and c= -4.

Now, we will use the formula:

And then x=\frac{-b\pm\sqrt{D}}{2a}

Where,D=b^2-4ac

x=\frac{-3\pm\sqrt{(3)^2-4(5)(-4)}}{2(5)}

Therefore, Option 1 is correct.

6 0
3 years ago
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Please help :((( will mark brainliest !
aniked [119]

Answer: i think its c

hope its right

:)

8 0
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Whats the answer for this? question? D:
omeli [17]
-1 because x is 4 so you just plug it in and 4-8 is -4 and -4/4 is -1.
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What is the area of the triangle in the coordinate plane?​
dem82 [27]

Answer:

The correct answer is 54 units

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Can somebody please help me with (d)?
lapo4ka [179]
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