For the function given, state the starting point for a sample period: ƒ(t) = −100sin (50t − 20). plz help

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?