Solve the equation.
= 5
A. 
B. 
C. 
D. 
Answer: D
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Find the domain and range of the function.y = x3 - 1
A. Domain: (-?, ?), range: [-1, ?) B. Domain: [0, ?), range: [-1, ?) C. Domain: (-?, ?), range: (-?, ?) D. Domain: (-?, ?), range: [0, ?)
Find the exact value of y, or state that y is undefined.y = cos-1
A. 
B. 
C. 
D. 
State whether the linear model shown in the graph is exact or approximate. Then find the equation of the line.
A. Exact; y = -x - 2 B. Approximate; y = -2x + 2 C. Approximate; y = -x - 2 D. Exact; y = -2x + 2
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = 0, y = 1, z = 2; (0, 1, 2) B. x = 2, y = 1, z = 0; (2, 1, 0) C. x = 2, y = 0, z = 1; (2, 0, 1) D. x = 0, y = 2, z = 1; (0, 2, 1)