Write the expression as one
involving only sin x and cos x.
sin 2x + COS X

What rotation was applied to triangle def to create d’e’f’?

What is the value of x enter your answer in the box (3x+50

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.