Solve using Cramer's rule.-5x - 5z = -25-8x + 3y - 7z = -30 8x - 6y = 14
A. (5, 1, 1)
B. (4, 3, 1)
C. (3, 1, 3)
D. (4, -3, -1)
Answer: B
Mathematics
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Add or subtract, as indicated.13 - 5
A. 8
B. 7
C. 12
D. 8
Mathematics
Graph the curve whose parametric equations are given.x = 3 cos t, y = - 3 sin t; 
? t ? 
A. 
B. 
C. 
D. 
Mathematics
Find the domain and range of the relation.{(14,4), (-8,8), (10,-9), (2,5), (4,-1)}
A. domain = {2, 5, -8, 8, 14}; range = {4, 4, -1, 10, -9} B. domain = {4, 4, -1, 10, -9}; range = {2, 5, -8, 8, 14} C. domain = {2, -8, 14, 4, 10}; range = {5, 8, 4, -1, -9} D. domain = {5, 8, 4, -1, -9}; range = {2, -8, 14, 4, 10}
Mathematics
Write an inequality whose solution set is the interval.[-25, ?)
A. x > -25 B. x ? -25 C. x < -25 D. x ? -25
Mathematics