The Mayans believed that when a person lives for the duration of the Calendar Round, They will attain the special wisdom of an elder. Determine the age (in years) is this belief using the Haab's calendar?

The Mayans of south-eastern Mexico and northern Central America had two calendars of different lengths.

The Haab's is 365 days and follows the solar year.
There is also a sacred calendar called the Tzolk'in, which has a 260-day cycle.

The Calendar Round is made from the connection between the two calendars.
The duration of the Calendar Round is when both calendars start again on the same day.

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.