Solve the problem.A $114,000 trust is to be invested in bonds paying 8%, CDs paying 5%, and mortgages paying 10%. The bond and CD investment must equal the mortgage investment. To earn an $9210 annual income from the investments, how much should the bank invest in bonds?

A. $20,000
B. $35,000
C. $57,000
D. $22,000


Answer: D

Mathematics

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Solve.The charge q (in coulombs) delivered by a current i (in amperes) is given by  where t is the time (in seconds). A damped-out periodic wave form has current given by  Find a formula for the charge delivered over time t.

A.  + C
B.  + C
C.  + C
D.  + C

Mathematics

Decide whether the problem is an equation or an expression.9(4x + 4) - 3(7x - 7)

A. Equation B. Expression

Mathematics

What number should be added to complete the square of the expression?x2 - x

A.
B. - 
C.
D. - 

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Determine if the graph of the function is concave up or concave down.f(x) = 2x2 + 2x - 4

A. Concave up B. Concave down

Mathematics