Solve the rational inequality. Write the solution set in interval notation.
? 0
A. 
B. 
? [2, ?)
C. 
D. 
? (2, ?)
Answer: C
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Give an appropriate answer.Suppose src="https://sciemce.com/media/4/ppg__rrr0609191216__f1q205g6.jpg" style="vertical-align: -38.0px;" /> 
f(x) = 1 and 
g(x) = -3. Write out the statement of the Main Limit Theorem that justifies the rewriting of the denominator in step (b) of the following calculation. If the step is not justified, state this.
= 
= 
A. 
[f(x)]n = 
n
B. 
= 
, provided 
g(x) ? 0
C. 
[f(x) ? g(x)] = 
f(x) ? 
g(x)
D. Step is not justified
Divide.
A. x2 + 4x - 4 B. x2 - 4x + 4 C. -5x2 + 4x - 4 D. -5x2 - 4
Identify the vertex, axis of symmetry, and whether the parabola opens upward or downward.
A. (-1, -2); x = -1; Downward B. (-1, -2); x = -1; Upward C. (-2, -1); x = 0; Upward D. (-2, -1); x = 0; Downward
Graph the polar equation.r sin ? = -1
A. 
B. 
C. 
D. 