A 12 foot ladder leans against a building so the angle between the ground and the ladder is 72∘. How high will the ladder reach? Round your answer to the nearest tenth, and do not include "x=" or any units in your answer. Just enter a numerical value.

Find the value of the cosine for angle a

Solve: 3x+y=6 4x-2y=18 show all work !

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?