The graph of the sine function looks like this- x is essentially the degree measure (in radians), while y is the value of the sine function. The graph of the cosine function looks like this- As with the sine function, analysis of the cosine function will show that the graph corresponds to the unit circle.
Answer: Maureen's body eliminated the bacteria faster then Ken's as if you multiply 150 times 0.976 you get a number larger then 90 so Ken would have eliminated 150 mg of antibiotics slower then Maureen.
1 = x + 4
3 = x
2 = 2x + 5
3 = 2x
3/2= x