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vovikov84 [41]
3 years ago
10

What is the value of y?

Mathematics
1 answer:
prohojiy [21]3 years ago
4 0

Answer:

<h2>C. 54°</h2>

Step-by-step explanation:

We know: measures of angles in a triangle add up to 180°.

Therefore we have the equation:

\gamma+\gamma+72^o=180^o      <em>subtract 72° from both sides</em>

2\gamma=108^o       <em>divide both sides by 2</em>

\gamma=54^o

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If the parabola is rotated so that its vertex is (h,k) and its axis of symmetry is parallel to the y-axis, it has an equation of (x - h)^2<span> = 4p(y - k)</span><span>, where the </span>focus<span> is (h, k+p) and the </span>directrix<span> is y = k - p. So, we need to determine the values from the equation.

</span><span>y=1/28(x-4)^2-5
</span>(x-4)^2 = 28(y+5)<span>
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focus= </span>(h, k+p) = 4,2
directrix = y = k - p = -12

Hope this answers the question.
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3 years ago
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-4/5 + -1/4<br> What does this equal
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Bezzdna [24]

Answer:

This is an impossible question. This is because it is less than -80 but when you add the 5 it is -70 therefore it must be -75. But it saying it is below -80 therefore this is an impossible question

7 0
3 years ago
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