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dem82 [27]
3 years ago
6

Solve 2x2 + x − 4 = 0 using completing the square

Mathematics
1 answer:
Archy [21]3 years ago
6 0
2x^2+x-4=0
x^2+\dfrac12x-2=0
x^2+\dfrac12x+\dfrac1{16}-\dfrac{33}{16}=0
\left(x+\dfrac14\right)^2=\dfrac{33}{16}
x+\dfrac14=\pm\dfrac{\sqrt{33}}4
x=\dfrac{-1\pm\sqrt{33}}4
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The following are the list of the racial injustice that king uses as effective support for his claim that african american are not free.
#1. He uses word to contrast the racial situation in the country in the past and present to what is expected in the future,
#2 The king shows that there is hope for change in the future
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3 years ago
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According to CPCTC, corresponding parts of congruent triangles are congruent, which means that PR and SU are equal.

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3 years ago
What is the value of <img src="https://tex.z-dn.net/?f=%20a_%7B1%7D%20" id="TexFormula1" title=" a_{1} " alt=" a_{1} " align="ab
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3 years ago
A city planner wants to build a road perpendicular to D Street. What is the slope of the new road?
Romashka-Z-Leto [24]

Answer:

The slope of the new road is 0.

Step-by-step explanation:

  • the slope of d street line is tan(90)

[if the angle made by a line with x axis is \alpha then, the slope of that line will be tan(\alpha) ]

  • here, the angle made by the d street line with x axis is 90 degrees.
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7 0
3 years ago
Read 2 more answers
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