10
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
X = √7²+4² by using Pythagoras Theory as the triangle is a right angled triangle
The answer is just 236,000 I hope it helps and is right
Answer:
y =16
I have solved it . It's in the picture above. Hope it helps