Find the domain and the range of the functions or relations from the graph.
A. domain: [0, ?); range: [0, ?)
B. domain: [0, ?); range: (-?, ?)
C. domain: (-?, ?); range: [-2, ?)
D. domain: [0, ?); range: [-2, ?)
Answer: D
Mathematics
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Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form.-7x + 6y = -302x + 2y = -10
A. No solution B. (0, -5) C. (0, -4) D. (-1, -4)
Mathematics
For the compound inequality, give the solution set in both interval and graph forms.4x > 4 and x + 5 < 5
A. ?
B. [-1, 0)
C. (-1, 0]
D. [-1, 0]
Mathematics
Simplify the expression by combining like terms.7b - 5a + 2c - 3b - 7a
A. 2a + 4b + 2c B. -12a + 4b + 2c C. -12a + 4b D. 4a - 12b + 2c
Mathematics
Solve by using the multiplication principle to clear fractions.
= 
y - 
A. 
B. 7
C. 
D. 36
Mathematics