Amusical instrument has a pitch of 220 hertz when the wavelength is 3 feet. when the wavelength is 4 feet, the pitch is 165 hertz. what is the type of variation between pitch and wavelength? what is the pitch when the wavelength is 5 feet? hertz

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −