Answer:
f(x)=5.05 sin((pi/12)x) + 5.15
Step-by-step explanation:
Ok so cos(x) = sin(90-x) so using that you can get sin(7x-15) = sin(90-(3x+5)) so 7x-15 = -3x+85. 10x = 100 and x = 10. Use that to find the 2 angles are 55 and 35
20& 10/35 - 26/35
19& 16/35 simplified to it's fullest.
Answer:
A
Step-by-step explanation: