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Reil [10]
3 years ago
8

Write each percent increase or decrease as a percentage of the initial amount.

Mathematics
2 answers:
True [87]3 years ago
7 0

Answer:

?

Step-by-step explanation:

olya-2409 [2.1K]3 years ago
5 0

Answer:

18%

Step-by-step explanation:

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The equation of a parabola with focus at (h, k) and the directrix y = p is given by the following formula:

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The depth of the reflector is the distance from the vertex to the directrix. In this case, the vertex is at the origin, so the depth is simply the distance from the origin to the line y = -1.3. Since the directrix is a horizontal line, this distance is simply the absolute value of the y-coordinate of the line, which is 1.3 inches. Therefore, the depth of the reflector is approximately 1.3 inches.

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