Multiply.-19i ? 3i
A. -57i
B. 57
C. -57
D. 57i
Answer: B
Mathematics
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Graph the inequality.y < ln (x + 3)
A. 
B. 
C. 
D. 
Mathematics
Use Gauss-Jordan elimination to solve the linear system and determine whether the system has a unique solution, no solution, or infinitely many solutions. If the system has infinitely many solutions, describe the solution as an ordered triple involving variable z. x + y + z = 92x - 3y + 4z = 7
A. 
B. no solution
C. 
D. 
Mathematics
Write the expression using a multiple of a logarithm.log6 
A. 
log6 y
B. y log6 
C. 
log6
D. 
Mathematics
Solve the following system of equations by substitution. If both variables cancel out, state the solution as no solution or infinitely many solutions.- 
x + y = 10x - 3y = 30
A. (30, 0) B. infinitely many solutions C. (0, -10) D. no solution
Mathematics