Use the following information for the next three questions. a certain union wants to estimate the mean hourly wage  of its members. a random sample of 15 members yields a mean equal to 6.5 dollars and a sample standard deviation equal to 0.90 dollars.

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step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

thus, the first answer choice, y = sec x, is the correct one