Answer:
90 is the distince of the lake
Answer:
Step-by-step explanation: 16
Expanding the left side of the equation, it is found that since <u>both sides are equal</u>, yes, it is an identity.
An equality represents an identity if <u>both sides are equal</u>.
In this problem:

Expanding the left side:



Since <u>both sides are equal</u>, yes, it is an identity.
A similar problem is given at brainly.com/question/24866308