hi pls answer all 4 question if you dont know just dont answer pls have a nice day i really need help guys

The answer to your question is the second choice    tan Ф = -3/4

Step-by-step explanation:

Data

sin Ф = -3/5

cos Ф > 0

Process

1.- The sin Ф is negative, which means that is in the third or fourth quadrant.

2.- sin Ф = -3/5   and sin Ф = Opposite side/hypotenuse

then, Opposite side = 3   hypotenuse = 5

3.- Calculate the adjacent side using the Pythagorean theorem

         c² = a² + b²

         b² = c² - a²

         b² = 25 - 9

         b² = 16

         b = 4

4.- If cos Ф is in the third quadrant

       cos Ф = -4/5    and cos Ф < 0    This is incorrect

5.- If cos Ф is in the fourth quadrant

       cos Ф = 4/5     and cos Ф > 0    This is correct

Then, this angle is in the fourth quadrant

6.- Calculate tan Ф

       tan Ф = -3/4