?Find 
, if 
.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: A
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Find the surface area of the surface S.S is the intersection of the plane 3x + 4y + 12z = 7 and the cylinder with sides y = 4x2 and y = 8 - 4x2.
A. 
B. 
C. 
D. 
Provide an appropriate response.A student is trying to solve the equation (x + 9)(x - 6) = 6. The student has set x + 9 = 6 and x - 6 = 6 and found that two solutions x = -3, x = 12. The student checks his or her results by plugging in his or her solutions into the original equation and finds that they do not work. How would you advise him or her?
What will be an ideal response?
Find a symbolic representation for f-1(x).f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. Not a one-to-one function
D. f-1(x) = 
Use substitution to determine whether the system of linear equations has no solutions, one solution, or infinitely many solutions.3x = y + 36x - 2y = 3
A. Infinitely many B. No solutions C. One