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ankoles [38]
2 years ago
5

364 - 127 I AM IN 2ND NOT MIDDLE SCHOOL​

Mathematics
2 answers:
Vlad1618 [11]2 years ago
7 0

Answer:

237

Step-by-step explanation:

Stella [2.4K]2 years ago
5 0
The answer is 237, because 364-127=237
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Nosaira solved an equation. Her work is shown below:
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Exercise 2 Determine the measures of the angles marked with letters. (Note: Lines with arrowheads are parallel)
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Need help in 31 and 33 thanks need ASAP
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Classify each substance as either a conductor or insulator.
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8 0
3 years ago
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Derive the equation of the parabola with a focus at (2, −1) and a directrix of y = −one half.
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Basically, the parabola has to have all points that are equidistant from the focus and the directrix, the directrix being a horizontal line, and the focus being a point given. To derive an equation from this you need to use the distance formula which I'm guessing you already know because you're already in precalc.
The gist of it is that we have a random point on the parabola (x,y), and the point (x,y) will be equidistant from both the focus and the directrix. If we use the distance formula, you get something like this:
\sqrt{(y-(- \frac{1}{2} ))^2} = \sqrt{(x-2)^2+(y-(-1)^2}
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All you need to do is simplify now!
<span>(y+\frac{1}{2})^2 = (x-2)^2+(y+1)^2 \\\ y^2+y+ \frac{1}{4} = x^2-4x+4 + y^2+2y+1 \\\ -y-\frac{3}{4} = x^2-4x+4 \\\ -y-\frac{3}{4} = (x-2)^2 \\\ -y = (x-2)^2+\frac{3}{4} \\\ y = -(x-2)^2-\frac{3}{4}
</span>
Hope I helped! 
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3 years ago
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