Find the sum, if it exists.3 + 
+ 
+ 
+ . . .
A. 
B. 
C. 
D. Does not exist
Answer: C
Mathematics
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Solve the problem.The vertex and focus of one parabola are, respectively, the focus and vertex of a second parabola. Find the equation of the first parabola, if 
is the equation of the second.
A. y2 = 32(x - 8) B. y2 = -32(x + 8) C. y2 = -32(x - 8) D. y2 = 32(x + 8)
Mathematics
Assume that all variables are implicit functions of time t. Find the indicated rate.y = 4x2 - 6x; dx/dt = 0.5 when x = 8; find dy/dt.
A. 58 B. 29 C. 1 D. 8
Mathematics
The torsion of a curve defined by r(t) is given by
 multiple choice.png)
Mathematics
Use a calculator to find the acute angle ? (to the nearest tenth of a degree) that satisfies the equation.tan ? = 0.53383945
A. 208.1° B. 331.9° C. 28.1° D. 61.9°
Mathematics