Answer:
392
Step-by-step explanation:
3 rectangular faces
7 x 16 = 112
7 x 16 = 112
7 x 16 = 112
2 triangular faces
1/2 x 7 x 8 = 28
1/2 x 7 x 8 = 28
Total surface area:
112 + 112 + 112 + 28 + 28 = 392
Answer:
8
Step-by-step explanation:
If she cuts them into half pieces that means there are two pieces of string for each yard. Multiply 2 and for to get 8
Answer:

Step-by-step explanation:
Given
-- Leading coefficient

Required
Determine the polynomial
Represent the zeros with a and b
Such that


The polynomial is:


However, to solve further: We need to symmetrise over 3-i and its conjugate


To define a suitable function, the expression becomes




Open bracket



Answer:
2nd one
Step-by-step explanation: