Solve the equation.5(t - 2) + 2(t - 1) = -2(t - 1) + 10(t + 2)
A. t = –44
B. t = –36
C. t = –34
D. t = –29
E. t = –27
Answer: C
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Find the requested partial derivative.(?w/?x)y if 
and 
A. 3x(3x + 2z2) + 18y(2x2 + 3z) B. 3x(x + 2z2) + 18y(2x2 + 3z) C. 3x(x + 2z2) + 18y(2x2 + z) D. 3x(3x + 2z2) + 18y(2x2 + z)
Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.The radiator in a certain make of car needs to contain 
of 40% antifreeze. The radiator now contains 
of 20% antifreeze. How many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength?
A. 20 L B. 25 L C. 12.5 L D. 16.7 L
Solve the problem.A balloon used in surgical procedures is cylindrical in shape. As it expands outward, assume that the length remains a constant 
Find the rate of change of surface area with respect to radius when the radius is 
(Answer can be left in terms of ?).
A. 60.16? mm2/mm B. 120.0? mm2/mm C. 60.32? mm2/mm D. 120.32? mm2/mm
Solve the problem. Round to the nearest cent.Sandra deposits $3000 at the end of each semiannual period for 24 years at 5% interest compounded semiannually. Find the final amount she will have on deposit.
A. $140,181.30 B. $260,003.66 C. $269,578.75 D. $272,578.75