algebra 2 help?

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Find the eccentricity of the following:
x^2/16 – y^2/25 = 1

A 4/5
B 5/4
C 16/25
D 41/25
E SQRT(41)/5
F 3/5

2007-08-23 06:31:45 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

In this hyperbola, c² = a²+b² = 16 + 25 = 41, so e = c/a = √41 / 4, which is not in your list. Whoever made the list intended E as the answer, but assumed a² = 25 because that's the larger denominator.

2007-08-23 06:51:32 · answer #1 · answered by Philo 7 · 0⤊ 0⤋

2007-08-23 13:48:48 · answer #2 · answered by Champoleon 5 · 0⤊ 0⤋