10 POINTS (ignore the bottom and top questions pls lol)

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225