Answer:
Below.
Step-by-step explanation:
a) An equilibrium does have rotational symmetry.
The angle of rotation is 120 degrees .
It has Rotational symmetry of order 3.
b) It does tessellate because the angle in the triangle divides exactly into 360 : 360 / 60 = 6.
Answer: n=66
Step-by-step explanation:
2n -2 = n + 64 subtract 1n on both sides
- n - n The n’s cancel out
————————
1n - 2 = 64 Add 2 on both sides
+2 +2 The 2’s cancel out
——————-
1n = 66 Divide 1 on both sides
—- ——
1 1 The 1’s cancel out
n= 66
Check it :
2(66) - 2 = 66 + 64
132 - 2 = 130
130 = 130
Answer:
Sorry I can't answer this question but, I can say this...
The three methods most commonly used to solve systems of equation are substitution, elimination and augmented matrices. Substitution and elimination are simple methods that can effectively solve most systems of two equations in a few straightforward steps.
Step-by-step explanation:
+-2,-(-2)etc dont know if this is corect tho