Express the interval in set builder notation and graph the interval on a number line.(-9, 9]
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Answer: D
Mathematics
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Provide an appropriate response.Factor by removing common factors after grouping: x2 + 3x + 4xy + 12y
A. (x + 4)(x + 3) B. (x + 4y)(x + 1) C. 4xy(x + 3) D. (x + 3)(x + 4y)
Mathematics
Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Mathematics
If 
find 
What will be an ideal response?
Mathematics
Solve the problem.The derivative of a function can be used to find the slope of the line tangent to its graph. If the slope of the line tangent to the graph of f(x) = -x3 + 7 at (3, -20) is -27, write the equation of this tangent line.
A. y = -27x - 47 B. y = -27x + 61 C. y = -27x - 61 D. y = -27x + 47
Mathematics