Solve the problem.A $112,000 trust is to be invested in bonds paying 9%, CDs paying 8%, and mortgages paying 10%. The bond and CD investment together must equal the mortgage investment. To earn a $10,210 annual income from the investments, how much should the bank invest in bonds?
A. $56,000
B. $13,000
C. $43,000
D. $11,000
Answer: B
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Tell whether a linear model or a quadratic model is appropriate for the data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the leading coefficient a of x2 should be positive or negative.
A. linear; positive B. quadratic; positive C. linear; negative D. quadratic; negative
Use the two-stage method to solve.Maximizez = 3x1 + 2x2subject to:x1 + x2 = 5 4x1 + 2x2 ? 12 5x1 + 2x2 ? 16 x1 ? 0, x2 ? 0
A. Maximum is 15 for x1 = 5, x2 = 0 B. Maximum is 12 for x1 = 2, x2 = 3 C. Maximum is 13 for x1 = 3, x2 = 2 D. Maximum is 14 for x1 = 4, x2 = 1
Solve the equation by the method of your choice. Simplify solutions, if possible.3x2 + 12x = - 7
A. 
B. 
C. 
D. 
Write the expression as a sum and/or a difference of logarithms with all variables to the first degree.log 
A. log 9x - log 17y B. log 9 + log x + log 17 + log y C. 9 log x - 17 log y D. log 9 + log x - log 17 - log y