1 Answer

Maraaaaaaaa · Answer 1 · 2023-10-08T01:41:09+0000

The top of a hill rises 171 feet above checkpoint 4.

From the given table, checkpoint 4 is at -183 feet above sea level.

This means that the top of the hill is

$171+(-183)=171-183=-12\: \text{feet}$

Therefore, the altitude of the top of the hill is -12 feet.

Part (b)

How much lower is checkpoint 5 than checkpoint 1?

From the given table, checkpoint 1 is at 1,415 feet and checkpoint 5 is at -132 feet above sea level

The difference between them is

$1,415-(-132)=1,415+132=1547\text{ feet}$

Therefore, checkpoint 5 is 1547 feet lower than checkpoint 1.

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