The speed of sound is approximately 768
768768 miles per hour. When an object travels faster than the speed of sound, it creates a sonic boom.
Write an inequality that is true only for speeds
(
s
)
(s)left parenthesis, s, right parenthesis at which a moving object creates a sonic boom.

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.