Solve the problem.A $108,000 trust is to be invested in bonds paying 8%, CDs paying 6%, and mortgages paying 9%. The sum of the bond and CD investment must equal the mortgage investment. To earn an $8540 annual income from the investments, how much should the bank invest in bonds?
A. $54,000
B. $22,000
C. $20,000
D. $32,000
Answer: B
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Suppose that the functions f and g and their derivatives with respect to x have the following values at the given values of x. Find the derivative with respect to x of the given combination at the given value of x.
1/f2(x), x = 4
A. - 
B. - 
C. - 
D. 
Factor the difference of squares.36(x + y)2 - 25z2
A. (6x + 6y + 25z)(6x + 6y - 25z) B. (6x + y + 5z)(6x + y - 5z) C. (6x + 6y + 5z)(6x - 6y - 5z) D. (6x + 6y + 5z)(6x + 6y - 5z)
Evaluate the definite integral and interpret the result.
A. 
; the shaded area above the x-axis minus the shaded area below the x-axis is equal to 
.
B. 3; the shaded area above the x-axis minus the shaded area below the x-axis is equal to 3.
C. 
; the total shaded area is equal to 
.
D. 5; the total shaded area is equal to 5.
Write a word name for the number in the sentence.Scientists were predicting the demise of the space colony as the population approached 600,040,000.
A. Six hundred billion, forty million B. Six hundred million, forty thousand C. Six hundred million, forty hundred D. Six hundred forty million