In 1857, the Supreme Court ruled in the Dred Scott decision that
A. slavery was inconsistent with the constitution and must be abolished.
B. protection of slavery was guaranteed in all the territories of the United States.
C. slavery would be constitutional only in those areas that were already slave territories.
D. abolition of slavery would be done only in those areas in which it is already abolished.
E. slavery was constitutional, but the slave trade was unconstitutional.
Answer: B
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In the process of producing engine valves, the valves are subjected to a first grind. Valves whose thicknesses are within the specification are ready for installation. Those valves whose thicknesses are above the specification are reground, while those whose thicknesses are below the specification are scrapped. Assume that after the first grind, 70% of the valves meet the specification, 20% are reground, and 10% are scrapped. Furthermore, assume that of those valves that are reground, 90% meet the specification, and 10% are scrapped.
a. Find the probability that a valve is ground only once. b. Given that a valve is not reground, what is the probability that it is scrapped? c. Find the probability that a valve is scrapped. d. Given that a valve is scrapped, what is the probability that it was ground twice? e. Find the probability that the valve meets the specification (after either the first or second grind). f. Given that a valve meets the specification (after either the first or second grind), what is the probability that it was ground twice? g. Given that a valve meets the specification, what is the probability that it was ground only once?
The electrode extension is referred to as ____________________.
Fill in the blank(s) with the appropriate word(s).
Kansas Gas Service Co. has put large stickers on all its vehicles designating them as safety
watch vehicles. Employees are trained to help children, older citizens, and others in need of help. This exemplifies the approach to social responsibility called social
a. obligation. b. contribution. c. opportunism. d. response. e. development.
Chemical energy is required to move electrons through an electrical circuit.
Answer the following statement true (T) or false (F)