Given A and b, determine the least-squares error in the least-squares solution of 
A = 
, b = 
A. 0.40824829
B. 60.2310367
C. 162.109188
D. 2.36290781
Answer: A
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Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total cost function is given by 
, where x represents the number of boxes of computer chips produced. The total profit function, P(x), is such that 
. Find P(x).
A. P(x) = -0.3x2 + 54x + 13 B. P(x) = 0.3x2 + 54x - 39 C. P(x) = -0.3x2 + 57x - 13 D. P(x) = 0.3x2 + 57x - 26
Provide an appropriate response.Does the curve y = 
ever have a negative slope? If so, where? Give reasons for your answer.
What will be an ideal response?
Factor completely, if possible.x2 - 2x - 48
A. (x - 6)(x + 1) B. (x - 6)(x + 8) C. (x + 6)(x - 8) D. Prime
Graph the inequality y?3x-1.
What will be an ideal response?