Solve using matrices.A $166,000 trust is to be invested in bonds paying 7%, CDs paying 6%, and mortgages paying 9%. The sum of the bond and CD investment must equal the mortgage investment. To earn an $12,840 annual income from the investments, how much should the bank invest in bonds?
A. $37,000
B. $44,000
C. $83,000
D. $39,000
Answer: D
Mathematics
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= 1
A. {3} B. {-3, -1} C. ? D. {3, -1}
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A. True B. False
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Factor the sum or difference of two cubes completely.8p3 + q3
A. (2p + q)(4p2 + q2) B. (2p + q)(4p2 + 2pq + q2) C. (2p + q)(4p2 - 2pq - q2) D. (2p + q)(4p2 - 2pq + q2)
Mathematics