Answer:
336 sq. in or 2.333333333 sq. ft.
Step-by-step explanation:
1 foot = 12 in
7 x 12 = 84 in
A = bh
A = 84 in x 4 in
A = 336 sq. in
1 sq. ft. = 144 sq. in
336 / 144 = 2.33333333 sq. ft.
I really don’t remember how to do these
It can't be f(1) = 1 because a function can't have two images on the same x.
Answer:

Step-by-step explanation:
Let,
Now, us simplify the given differential equation and write it in terms of D,

or, 
or, 
We have our auxiliary equation:

or, 
or, 
Therefore our solution is,

and, 
Applying the boundary conditions, we get,


Solving them gives us,

Hence,

A. Re(z)= 32 and Im(z)= 41.9
The real part of a complex number z=a+bi is ‘a’, and the imaginary part is ‘b’