Math assignment – cool one with the Eiffel tower :)2

Math assignment 

Height: 300m

Ground length c: 97,5m

• 1. As indicated on the drawing the shape of the Eiffel tower is almost a triangle. Find the missing angles and sides in the triangle.

• 2. The google trends figure shows the number of times there has been searched for “santa claus” on google throughout the years. Using exponential regression we find that the formula that expresses the exponential function is y= 15,47_*0,816 ^x
• a. What is the search volume index for “santa claus” in 2056?
• b. In which year is the  search volume index less than 3?
• c. Find T_1/2 – when is the value of the search volume index from year 2004 halved?