Solve the equation.10j + 7 = 8j + 11
A. j = 
B. j = 
C. j = 4
D. j = 2
Answer: D
Mathematics
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Determine whether the graph of the equation is a circle, parabola, ellipse, or hyperbola. Sketch the graph.(x + 3)2 + (y - 2)2 = 16
A. 
B. 
C. 
D. 
Mathematics
Transform the equation to a form without an xy-term by a rotation of axes. Graph the curve.x2 + xy + y2 - 3y - 6 = 0
A. 
B. 
C. 
D. 
Mathematics
For the smooth curve r(t), find the parametric equations for the line that is tangent to r at the given parameter value 
r(t) = (5 tan t)i - (9 sin t)j + (8 cos2 t)k ; t0 = 
A. x = 10 + 5t, y = -
- 
t, z= -8 + 4t
B. x = 5 + 10t, y = -
- 
t, z = 8 - 8t
C. x = 5 + 10t, y = -
+ 
t, z = 4 + 8t
D. x = 5 + 10t, y = -
- 
t, z = 4 - 8t
Mathematics
What part of the object or set of objects is shaded?
A. 
B. 
C. 
D. 
Mathematics