Solve for x.33x - 1 = 243
A. x = 2
B. x = 1
C. x = 3
D. x = 4
Answer: A
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Find all the first order partial derivatives for the following function.f(x, y, z) = 
A. 
= - 
; 
= 
; 
= - 
B. 
= - 
; 
= - 
; 
= 
C. 
= 
; 
= 
; 
= 
D. 
= 
; 
= - 
; 
= 
Determine the reference angle for the given angle.? = 
A. 
B. 
C. 
D. 
Give the domain and range of the relation.y = 4x + 4
A. domain: (-?, ?); range: [0, ?) B. domain: (-?, ?); range: (-?, ?) C. domain: [0, ?); range: (-?, ?) D. domain: (-?, ?); range: [4, ?)
In the energy demand problem above, the demand vectors could be represented in a 2 row matrix, where row 1 contains the energy demands of the consumers and row 2 contains the energy demands of the energy industries:D = 
A boom in the economy causes an across the board increase of 10% in energy demands in the area. Calculate a new demand matrix which reflects this increase.
What will be an ideal response?