Two functions are represented in different ways. Function 1: let x = number of hours worked. Let y = total pay in dollars. Y = 20x + 15. Function 2: a babysitter club charges a $25 flat rate and $10 for each additional hour. Which has the greater rate of change

The answer to your question is     cos Ф = 3 / 5

Step-by-step explanation:

Data

hypotenuse = 5

Adjacent side = 3

Opposite side = 4

Process

1.- Remember the trigonometric function cosine

           cosine Ф = Adjacent side / hypotenuse

2.- Substitution

            cos Ф = 3 / 5

3.- Conclusion

    The cosine of Ф is 3/5