Answer:
C. 9/40
Explanation:
sin is opposite over hypotenuse so 9 becomes a leg and 41 is the hypotenuse. To find the other leg you square 9 and 41 and subtract the square of 9 from square of 41. that equals 1600. you then take the square root to get x by itself and that equals 40. tan is opposite/ adjacent. that becomes 9/40