You can soustracte the first or the second one
and y cancel
x = 6
now you put 6 in x
you can take the first or the second one
6 - y = -2
6 - y = -2
y = -8
X=12x+55
y=-3x-14
simplfy to the right side
8
Reduce the expression, if possibel, by cancelling the common factors
Sinα=h/L where h=height, L=string length...
h=Lsinα so
h(25°)=50sin25≈21.1ft
h(45°)=50sin45≈35.4ft
Answer:
all of them that have more than 4 sides
