Answer:
see below
Step-by-step explanation:
Closed under addition, subtraction and multiplication
Not closed under division :-
for example 3/4 = 0.75 which is not an integer
1/4 = the probability of getting spiral wrapping paper
1/3 = the probability of getting a green ribbon
1/4 x 1/3 = 1/12 = the probability of getting spiral wrapping paper and a green ribbon
Answer:
23x93x66x33ans is 20000this is and of your qustion
Answer:
∠8 = 40°, ∠6 = 50°, ∠9= 140°
Step-by-step explanation:
∠8 = 40° (vertically opposite angles are congruent)
now, using angle sum property of triangles
∠6 + 90° + 40° = 180°
∠6 = 180° - 130°
∠6 = 50°
and, using exterior angle property,
50° + 90° = ∠9 = 140°
