Let the shorter piece be x. The longer piece is 4 times the length of the other, so it is 4x.
4x + x = 160.
5x = 160
x = 32
4x = 128
The length of the shorter piece is x, which is 32.
Answer:
D
Step-by-step explanation:
cuz its a 90° angle
2x²+3x+7=x
2x²+3x-x+7=0
2x²+2x+7=0
for the first one it 2
3
12