The map of France commonly used in the 1600s was significantly revised as a result of a triangulation survey. The diagram shows part of the survey map. Use the diagram to find the measure of angleKMJ. Note that angleKMJ ≅ angle NCM. Hope this helps

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

8

step-by-step explanation:

answer: none of these answers are correct only the second half is

step-by-step explanation: