Write a letter to a friend describing the similarities and differences between the three trigonometric ratios: Sine, Cosine, and Tangent. Include when they can be used and why they are helpful.​

What is the value of the expression below? 148+(-6)| + |– 35= 7|

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Which diagram shows lines that must be parallel lines cut by transversal?