(a)Using the Gauss-Jordan method, find the inverse of the matrix 
.(b) Based on your answer to (a), solve the system 
= 
.
What will be an ideal response?
(a)
(b) x = 13, y =23, z =19
Mathematics
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Find the center (h, k) and radius r of the circle with the given equation. (x + 5)2 + (y + 7)2 = 49
A. (h, k) = (-5, -7); r = 49 B. (h, k) = (-5, -7); r = 7 C. (h, k) = (-7, -5); r = 7 D. (h, k) = (-7, -5); r = 49
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Factor.49x2 - 36
A. (7x - 6)2 B. 49x2 - 36 C. (7x + 6)(7x - 6) D. (7x + 6)2
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Solve the problem.The sales of a mature product (one which has passed its peak) will decline according to the function 
where t is time in years since the peak sales. Find the sales of a product 13 years after its peak sales if 
and 
A. 9687 B. 324,023 C. 59,788 D. 4844
Mathematics
Multiply.(x + 16)2
A. 256x2 + 32x + 256 B. x + 256 C. x2 + 256 D. x2 + 32x + 256
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