Use the Gauss-Jordan method to solve the system of equations. x - y + 3z = 145x + z = 4 x + 2y + z = 0
A. (4, 0, -2)
B. (0, -2, 4)
C. (4, -2, 0)
D. No solution
Answer: B
Mathematics
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Evaluate the indicated double integral over R.
; R = {(x, y): 0 ? x ? 1, 0 ? y ? 1}
A. 
(e5 - e3 - e2 + 1)
B. 
(e5 - e3 - e2 - 1)
C. 
(e5 - e3 - e2 + 1)
D. 
(e5 - e3 - e2 - 1)
Mathematics
Find the area of the region specified in polar coordinates.The region inside 
and outside 
A. 81
B. 81
C. 81
D. 81
Mathematics
Decide whether the statement is true or false.If a circle is split in half so as to make a semicircle, the diameter now becomes the radius and the radius is reduced to one-third its original size.
A. True B. False
Mathematics
Use unit ratios to convert the units.60 inches to feet
A. 180 ft B. 0.42 ft C. 20 ft D. 5 ft
Mathematics