I need help with this please (sorry the picture is blurry.)
1 answer:
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Answer:
<em>The measure of a single interior angle is 169.4°</em>
Step-by-step explanation:
<u>Angles in Regular Polygons</u>
The sum of the interior angles, in degrees, of a regular polygon, is given by the formula 180(n – 2), where n is the number of sides.
For a regular 34-gon, n=34, and the sum of the interior angles is:
180(34 – 2)=5,760°
The measure of any of the interior angles is
The measure of a single interior angle is 169.4°
Answer:
D. (y +4)² = -4(x -2)
Step-by-step explanation:
The directrix is a vertical line, and the focus is to the left of it. The parabola will open to the left.
The vertex is halfway between the focus and directrix, so is located on the same horizontal line as the focus, at ...
x = (1 +3)/2 = 2
The focus to vertex distance is the difference in x-coordinates: 1 -2 = -1. This is the value of p in the form ...
(y -k)² = 4p(x -h) . . . . . . . parabola with vertex (h, k)
The equation is ...
(y +4)² = -4(x -2)
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<em>Additional comment</em>
Once you determine that the directrix is a vertical line, you know the equation will have a y² term. The only answer choice that has that is D.
