Find Dxy.y = -sinh-1 (3x2 + 4)
A. 
B. 
C. 
D. 
Answer: D
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Write true or false for the following statement.Let A = {3, 5, 7, 9, 11, 13} B = {3, 5, 9, 11} C = {5, 9, 13}{13} ? B
A. True B. False
Transform the equation to a form without an xy-term by a rotation of axes and then identify the curve.x2 + 2xy + y2 - 4x + 4y = 0
A. x'2 + 2
y' = 0; parabola
B. x'2 + 2
y' = 0; ellipse
C. x'2 - 2
y'2 = 0; hyperbola
D. x'2 - 2
y' = 0; parabola
Determine the standard equation of the ellipse described.Focus at (-7, 0); vertices at (-8, 0) and (8, 0).
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve.10,500 college students were asked to name their favorite sport. Of this group, 
said basketball, 
said soccer, 
said baseball, 
said they had no favorite sport, and the remainder said volleyball. How many named each sport? 
A. Basketball: 3,500 Soccer: 2,100 Baseball: 1,800 Volleyball: 2,575 None: 525 B. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,635 None: 515 C. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,625 None: 525 D. Basketball: 3,500 Soccer: 2,050 Baseball: 1,750 Volleyball: 2,675 None: 525