Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km. Find the latitude of Spokane, WA if Spokane and Jordan Valley, OR,  are  apart.

A. 52.46 °N
B. 38.8 °N
C. 39.5 °N
D. 47.5 °N


Answer: D

Mathematics

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A. {xx ? 28}, [28, ?)

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A.

B.

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