20/40 vision means that the test subject sees at 20 feet what a normal person sees at 40 feet. Another way of saying this is that a person with 20/40 vision has vision that is only half as good as normal-or, objects must be at half the normal distance for him to see them.
Answered by The Community. Making the world better, one answer at a time. The term of the compromise 1850 was a group of five bills, passed September 1850, which defuse a four year confrontion between slave states of the south & free states of the north.nswered by The Community. Making the world better, one answer at a time. The term of the compromise 1850 was a group of five bills, passed September 1850, which defuse a four year confrontion between slave states of the south & free states of the north.
The Missouri Compromise of 1820 admitted Missouri as a slave state,  and Maine as a free state, to keep the balance of slave/non-slave  states equal in Congress. It also est â¦ ablished the 36-30 line, and  said that slavery would not be allowed above that line except for  in Missouri.   The Compromise of 1850 admitted California as a free state, and  gave the South stricter Fugitive Slave Laws as a way to balance  the deal. The Missouri Compromise was a compromise of new territory should be  considered a free state or slave state. This compromise proposed  whatever was north of the 36'30' line was to be a free state and  whatever was south of this line was to be slave state.