180-129= 51
angle 4 is equal to angle 12 so missing angle 12= 51°
Is that supposed to be y=-2x+1?
i cannot solve without the proper equation lol
Start at -4 on the number line. Move 6 units to the left to get to -10
This shows -4 - 6 = -10
Answer: B: n^2+6n+1
Step-by-step explanation:
A=n
B=2n+6
C=n^2-1
AB-C
n(2n+6)-n^2-1
2n^2+6n-n^2+1
n^2+6n+1