Answer:
-3x-y=5
y-2z=7
x-4y+z=-9
Step-by-step explanation:
3^4 / 8^2 or 81/64
(-8)^-2 / 3^-4 =
= 3^4 / (-8)^2
= 3^4 / 8^2
= 81/64
sin A = 12 /13
Since this is a right triangle, we can use trig functions
sin A = opp / hyp
