Answer:
C
Step-by-step
The 12 inch dimension is at right angles to the face in question. Any answer with 12 is incorrect.
A B and D are all wrong for that reason.
So the answer must be C. The 5 and 4 are both parallel to the cross sectional face
Answer:
C. 5 in. times 4 in.
Step-by-step explanation:
b)9n · 7
c)9(n + 7)
Answer:
a) 9n-7
Step-by-step explanation:
Let the unknown number be represented by placeholder n.
Then the product of 9 and the number is represented by 9*n or 9n.
This value diminished by 7 corresponds to 9n - 7.
So the expression representing the required overall construct mathematically is given by 9n-7
Option b, 9n * 7 represents the product of 9n and 7.
Option c, 9(n+7) represents the product of 9 and (n incremented by 7).