Use Venn diagrams to determine whether the following statements are equal for all sets A and B.(A ? B)', A' ? B'
A. not equal
B. equal
Answer: B
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Solve the problem.In a chemical reaction, the rate at which the amount of a reactant changes with time is proportional to the amount present, such that 
, when t is measured in hours. If there are 
of reactant present when t = 0, how many grams will be left after 
? Give your answer to the nearest tenth of a gram.
A. 5.9 g B. 4 g C. 2 g D. 0.1 g
Solve the given applied problems involving variation.The weight W of an object on the Moon varies directly as the weight E on earth. A person who weighs 
on earth weighs 34.6 lb on the Moon. How much would a 101-lb person weigh on the Moon?
A. 0.2 lb B. 20.2 lb C. 505 lb D. 308.6 lb
Find an antiderivative of the given function.e-4x/5
A. e-4x/5
B. 
e-4x/5
C. - 
e-4x/5
D. - 
e-4x/5
Solve the problem.A painter needs to cover a triangular region 61 meters by 69 meters by 72 meters. A can of paint covers 70 square meters. How many cans will be needed?
A. 14 cans B. 3 cans C. 28 cans D. 318 cans