Perform the indicated operations. Simplify the answer.
A. 
B. 11
C. 11i
D. i
Answer: A
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Provide an appropriate response.Suppose an artist always paints rectangular pictures using a square of unknown length as a reference. She always makes the length 4 units longer than the square, and the width is 2 units longer than the square.(a)Write a function l(x) for the length of a painting as a function of the length of the square.(b)Write a function a(x) for the area of a painting as a function of the length of the square.(c)Write a function 
(x) for the ratio of the length to the area as a function of the length of the square.
What will be an ideal response?
Provide an appropriate response.A welder analyzed his account records and discovered that his profit could be predicted by the formula P = -x2 + 80x - 1500, where x represents the number of welds he could do daily. How many welds should he do daily to maximize his profits?
Fill in the blank(s) with the appropriate word(s).
Solve for the variable.3(x + 8) = 4(x - 8)
A. x = 8 B. x = 56 C. x = -8 D. x = -56
Find the slope of the line.y = 3x + 2
A. - 
B. 3
C. 2
D. 