Find the derivative.g(x) = 3x2e-x
A. 3xe-x(2 - x)
B. 3xex(2 - x)
C. 3xe-x(x + 2)
D. 6xe-x(1 - x)
Answer: A
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Solve the problem.The formula for computing a car's gas mileage is 
where E is the ending odometer reading, B is the beginning odometer reading, G is the number of gallons of gasoline used for the trip, and M is the gas mileage. Find the mileage for a trip for which E = 27,733.7, B = 27,152.7, and G = 17.5. Round to the nearest tenth.
A. 33.5 mpg B. 34.2 mpg C. 33.2 mpg D. 32.5 mpg
Solve.A lab technician has 7400 milliliters of a solution. 9% is acid. How many milliliters are acid?
A. 6660 ml B. 666 ml C. 766 ml D. 7660 ml
Solve the problem.The cross section of one type of weight-bearing rod is a circle as shown in the figure below. The rod can handle a stress of 15,000 pounds per square inch (psi). The relationship between the stress S that the rod can handle, the load F the rod must carry, and the diameter, d of the cross section is given by the equation 
If 
find the load the rod can support. Use ? ? 3.14 in your calculation. 
A. 1,177,500 B. 117,750 C. 294,375 D. 93,750
Simplify the expression. Write answer with positive exponents.
A. 
B. 86
C. 818
D. 8