Solve the problem.Mardi received an inheritance of $70,000. She invested part at 10% and deposited the remainder in tax-free bonds at 9%. Her total annual income from the investments was $6600. Find the amount invested at 10%.
A. $15,000
B. $30,000
C. $63,400
D. $29,000
Answer: B
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Use logarithmic differentiation to find the derivative of y.y = 
A. 
+ 
- 
B. 
C. ln x + 
ln(x5 + 4) - 
ln(x - 2)
D. 
Solve the problem.A steel can in the shape of a right circular cylinder must be designed to hold 450 cubic centimeters of juice (see figure). It can be shown that the total surface area of the can (including the ends) is given by S(r) = 2?r2 + 
, where r is the radius of the can in centimeters. Using the TABLE feature of a graphing utility, find the radius that minimizes the surface area (and thus the cost) of the can. Round to the nearest tenth of a centimeter. 
A. 4.2 cm B. 3.4 cm C. 0 cm D. 5.4 cm
Find the indicated term of the sequence.The eleventh term of the arithmetic sequence 6, 4, 2, ...
A. 28 B. -14 C. 26 D. -16
Solve the equation by factoring.12x + 
= - 29
A. 
B. 
C. 
D. 