Find an equation for a sinusoidal function that has period π, amplitude 1, and contains the point (π/4,1) Write your answer in the form f(x) = Acos(Bx + C)+ D, where A, B, C, and D are real numbers.​

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Use the distance formula to find the distance between (-3,5) and (3,1)

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 −