Solve the system using matrices. If there is no solution or if there are infinitely many solutions and a system's equations are dependent, so state.
A. {(-19, 5)}
B. {(19, -5)}
C. no solution or ?
D. infinitely many solutions; dependent equations
Answer: B
Mathematics
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Find the cubic or quartic function that models the data in the table.
(Cubic)
A. y = 0.23x3 + 0.93x2 + 5.10x + 15.00 B. y = 0.23x3 + 0.73x2 + 5.30x + 15.00 C. y = -0.23x3 + 0.93x2 + 5.30x + 15.00 D. y = -0.23x3 + 0.73x2 + 5.10x + 15.00
Mathematics
Simplify the rational expression.
A. 
B. 
C. 
D. 
Mathematics
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 3x + 1; relative to f(x) = 3x
A. Moved down 1 unit(s)
B. Moved left 1 unit(s)
C. Moved right 1 unit(s)
D. Moved up 1 unit(s)
Mathematics
Find the inverse of A if it has one, or state that the inverse does not exist.A = 
A. 
B. 
C. 
D. Inverse does not exist
Mathematics