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'
A. {-8, -1, 0, 4, 6, 9}
B. {-8, -1, 0, 4, 6, 7, 9}
C. {-8, -1, 4, 6, 9}
D. {-1, 0, 4, 6, 9}
Answer: A
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Find the length of the third side of the right triangle.Round to the nearest thousandth, if necessary.
A. b ? 26.926 km B. b ? 22.913 km C. b = 525 km D. b ? 3.873 km
Rewrite the system of inequalities, adding slack variables or subtracting surplus variables as needed.x1 + x2 + x3 ? 44x1 + x2 + x3 ? 21x1 + x2 ? 14
A. x1 + x2 + x3 - s1 = 44 x1 + x2 + x3 + s2 = 21 B. x1 + x2 + x3 - s1 = 44 x1 + x2 + x3 + s2 = 21 x1 + x2 + s3 = 14 C. x1 + x2 + x3 + s1 = 44 x1 + x2 + x3 - s2 = 21 x1 + x2 - s3 = 14 D. x1 + x2 + x3 + s1 = 21 x1 + x2 + x3 - s2 = 44
Solve the system of equations.
- 
= -23
+ 
= 6
A. ?
B. 
C. 
D. 
Translate the problem to a system of equations, then solve using Cramer's Rule.Jerry has 3 pieces of string. The total length is 82 inches. The sum of the two longer pieces is 70. The middle piece is twice as long as the shortest piece. What are the lengths of the 3 pieces?
A. 6, 12, and 64 inches B. 12, 24, and 46 inches C. 12, 46, and 56 inches D. No solution