The two triangles below are similar. Find the missing lengths.
A. x = 28
B. x = 26
C. x = 20
D. x = 35
Answer: A
Mathematics
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Find the average value of 
over the given region.
over the cube in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 27 B. 72 C. 18 D. 36
Mathematics
Graph the pair of parametric equations in the rectangular coordinate system.x = 9 cosh t , y = 6 sinh t, -? < t < ?
A. 
B. 
C. 
D. 
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For the given polar equation, write an equivalent rectangular equation.r = 
A. 9x - 7y = 1
B. 
= 1
C. 
+ 
= 1
D. 9y - 7x = 1
Mathematics
Find an equation for the ellipse described. Graph the equation.Vertices at (5, -4) and (5, 8); length of minor axis is 6
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Mathematics