Solve the system by the Gauss-Jordan method.
?
?
A. 
B. ?
C. ?
D. ?
E. inconsistent
Answer: C
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Solve the problem.The graph shows the annual revenue in millions of dollars of a cosmetics company.
(a) Use the graph to complete the table. 
(b) What was the average annual change in revenue?(c) What was the average annual revenue over the five-year period?
A. (a) 
(b) -$600,000
(c) $240,000,000
B. (a) 
(b) -$1,800,000
(c) $48,000,000
C. (a) 
(b) $1,800,000
(c) $240,000,000
D. (a) 
(b) $600,000
(c) $43,200,000
Solve the system of equations using the inverse of the coefficient matrix.5x + 4y = 8-4x + 2y = -22
A. x = 4, y = -3 B. x = -4, y = 3 C. x = -3, y = 4 D. x = 3, y = -4
Determine the sum or difference in clock 12 arithmetic.2 - 9
A. 5 B. 3 C. 0 D. 4
Find the volume of the solid. Use 
for ?.
A. 405 cu mi
B. 22
cu mi
C. 135 cu mi
D. 202
cu mi