Express the radical in simplest form, rationalize denominators, and perform the indicated operations.8
+ 2x
A. 66x
B. 66
C. (8
+ 10
)x
D. 10x
Answer: A
Mathematics
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Sketch D and g(D) from the description of D and change of variables 
u = xy, v = 
where D is the rectangle 1 ? u ? 4, 
? v ? 2
?
A.
 ? |  |
B.
 ? |  |
C.
 ? |  |
D.
 ? |  |
Mathematics
Perform the operation(s). (Write fractional answers in simplest form.)
?
?
A. 26
B. 
C. 15
D. 
E. 11
Mathematics
Convert the mixed number to an improper fraction.3
A. 
B. 
C. 
D. 
Mathematics
Write the equation for the plane.The plane through the points P(-1, -6, 10) , Q(2, -8, 39) and 
A. 7x + 4y + z = 7 B. 7x + 4y +z = -7 C. 7x - 4y - z = -7 D. 7x - 4y - z = 7
Mathematics