Solve for x.
x = 4
A. -4
B. 2
C. -1
D. -2
Answer: D
Mathematics
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Find the length of the curve.The spiral r = 2?2, 0 ? ? ? 2
A. 
?5
B. 
C. 
((?2 + 1)3/2 - 1)
D. 
Mathematics
Determine whether the graph shown is the graph of a polynomial function.
A. polynomial function B. not a polynomial function
Mathematics
Decide what values of the variable cannot possibly be solutions for the equation.
+ 
= 0
A. -1, 2 B. -2, 7 C. -2, 0, 1 D. -7, 2
Mathematics
Determine the vertex of the graph of the parabola.y = x2 - 2x - 8
A. (1, 9) B. (- 1, 9) C. (1, - 9) D. (- 1, - 9)
Mathematics