Find a QR factorization of the matrix A.A = 
A.
Q = 
, R = 
B.
Q = 
, R = 
C.
Q = 
, R = 
D.
Q = 
, R = 
Answer: B
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Determine convergence or divergence of the alternating series.
A. Diverges B. Converges
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 + 12x + 36 = 0
A. Two different real-number solutions B. One real solution C. Two different imaginary-number solutions
Simplify the expression using the order of operations.(6 - 92)2
A. 5625 B. -24 C. 144 D. -5625
Solve the problem.The daily profit in dollars of a specialty cake shop is described by the function 
where x is the number of cakes prepared in one day. The maximum profit for the company occurs at the vertex of the parabola. How many cakes should be prepared per day in order to maximize profit?
A. 441 cakes B. 2205 cakes C. 42 cakes D. 21 cakes