Answer:
351
Step-by-step explanation:
27C2 = 27! / 2! × (27-2)!
= 27×26×25! / 2×1 × 25!
= 27×26 /2
= 27×13
= 351
Answer:
6 vertices and 5 faces
Step-by-step explanation:
The faces are correct as there are 3 rectangles and 2 triangles.
So a total of 5 faces
There are 6 corners/vertices so the answer is 6 vertices
Answer:
y+v = x
Step-by-step explanation:
just add v to the other side
Answer:
a. -6
Step-by-step explanation:
