Find the product of the complex number and its conjugate.
- 3i
A. 3 - 9i
B. 3 + 9i
C. 12
D. 6
Answer: C
Mathematics
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Solve by the substitution method. If the system is inconsistent or dependent, say so.5x + 4y = 253x + 2y = 13
A. (1, 6) B. (0, 6) C. (1, 5) D. No solution
Mathematics
Provide an appropriate response.Monthly payments are the fastest way to pay off a home mortgage.
A. True B. False
Mathematics
Solve by the substitution method.x + 2y = 13x + 3y = 3
A. (0, 1) B. (1, 3) C. (-1, -1) D. (1, 0)
Mathematics
Find the amplitude.y = 5 cos
A. 
B. 20
C. 5
D. 4
Mathematics