Use a sketch to find the exact value of the expression.cot 
A. 2
B. 1
C. 
D. 
Answer: B
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Translate the problem to a system of equations, then solve using matrices.A $96,000 trust is to be invested in bonds paying 9%, CDs paying 8%, and mortgages paying 10%. The sum of the bond and CD investment must equal the mortgage investment. To earn an $8790 annual income from the investments, how much should the bank invest in bonds?
A. $15,000 B. $13,000 C. $48,000 D. $33,000
List the x-values in the graph at which the function is not differentiable.
A. x = 5 B. x = 2, x = 5 C. Function is differentiable at all points. D. x = 2
Solve the initial value problem.
= -9sin 
, s '(0) = 12, s(0) = -2
A. s = sin 
+ 11t - 2
B. s = sin 
+ 12t - 3
C. s = sin 
- 3
D. s = 3cos 
+ 12
Write the exponential expression as a radical expression. Simplify if possible.(125y6)1/3
A. 
= 125y2
B. 
= 5y6
C. 
D. 
= 5y2