Find the linearization of the function at the given point.
at 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Evaluate the integral by making a substitution and then using a table of integrals.
A. 
+ ln 
+ C
B. 
+ 
sin-1 
+ C
C. 
- 
ln 
+ C
D. 
- 
ln 
+ C
Mathematics
Find the exact solutions to the quadratic equation in the complex numbers.5x2 + 55 = 0
A. ±
B. ± i
C. ±11i
D. 27.5
Mathematics
If the sequence is arithmetic, find the common difference. If the sequence is not arithmetic, say so.-6, -11, -16, -21, . . .
A. -15 B. -10 C. -5 D. Not arithmetic
Mathematics
Find the vertex, focus, and directrix of the parabola. Graph the equation.x2 = -8y
A. vertex: (0, 0)
focus: (2, 0)
directrix: x = -2
B. vertex: (0, 0)
focus: (-2, 0)
directrix: x = 2
C. vertex: (0, 0)
focus: (0, -2)
directrix: y = 2
D. vertex: (0, 0)
focus: (0, 2)
directrix: y = -2
Mathematics