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Vedmedyk [2.9K]
3 years ago
6

Please help me with these two. i have no teacher and i do not recall trhis

Mathematics
1 answer:
Marianna [84]3 years ago
5 0

Answer:

It shows a contradiction because (a − 4b) / b is a rational number and √5 is an irrational number.

Step-by-step explanation:

A rational number can be written as a ratio of two integers.

An irrational number cannot.

(a − 4b) / b is a rational number.

√5 is an irrational number.

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CORRECTED QUESTION:

Two cities have nearly the same​ north-south line of 110 degrees Upper W. The latitude of the first city is 23 degrees Upper N, and the latitude of the second city is 36 degrees N. Approximate the distance between the cities if the average radius of Earth is 6400 km.

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