Reduce the rational expression to lowest terms.
A. - 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form.x - y + z = 10x + y + z = 6x + y - z = -4
A. (3, 5, -2) B. (5, 3, -2) C. No solution D. (3, -2, 5)
Mathematics
Find the set if the universal set U = {-8, -3, -1, 0, 2, 4, 5, 6, 7, 9}, A = {-8, -3, -1, 2, 5}, B = {-3, 2, 5, 7}, and C = {-1, 4, 9}.(B ? C) ? A
A. {-3, -1, 2 } B. {-3, -1, 2, 4, 5, 7, 9} C. ? D. {-3, -1, 2, 5}
Mathematics
The area of a circle is 215 ft 2. Find its radius. Use the rules for working with measurements.
A. The radius is 11.7 ft. B. The radius is 16.5 ft. C. The radius is 4.14 ft. D. The radius is 8.27 ft. E. The radius is 23.4 ft.
Mathematics
Simplify.
A. - 
B. 4x4
C. 
D. 
Mathematics