What addition does the model below represent?

Asquare parking lot has 6,400 square meters what is the length in meters

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Acable company claims that the average household pays $78 a month for a basic cable plan, but it could differ by as much as $20. write an absolute value inequality to determine the range of basic cable plan costs with this cable company. a. |x − 78| ≥ 20 b. |x − 20| ≥ 78 c. |x − 20| ≤ 78 d. |x − 78| ≤ 20