Use the graph to estimate any solutions of the system.x = -y2 y = x + 2
[-6, 6] by [-6, 6]
A. (-1, 1) and (-4, -1)
B. (-1.5, 1) and (-4.5, -2)
C. (-1, 1) and (-4, -2)
D. (-1, 1.5) and (-4, -3)
Answer: C
Mathematics
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Write the phrase as a mathematical expression. Use x as the variable.Some number minus 51
A. 51 B. 51x C. x + 51 D. x - 51
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Find the exact value of the expression or state that it does not exist.cos-1
A. 
B. - 
C. 
D. 
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Perform the indicated operation and express the answer in simplest form.
A. 2 
+ 11 
+ 6 
B. 2 
- 6 
C. 2 
- 11 
+ 6 
D. 2 
+ 11 
- 6 
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Solve the quadratic inequality. Express your solution on a number line using interval notation.(x - 3)(x + 7) > 0
A. (-7, ?)
B. (-7, 3)
C. (-?, -3) ? (7, ?)
D. (-?, -7) ? (3, ?)
Mathematics