B. 5
Each row across (left to right) adds up to 43
Let's say we placed dominoes close together such that they only fell over one way: to the right hand side. Let's call the dominoes A and B.
Domino A is to the left of domino B. If we push over domino A, then it will hit domino B to cause it to fall over as well. We have a mini chain reaction of sorts. The fall of A triggers the fall of B, but not the other way around.
For this problem, we can think of domino A as "Jillian gets a raise" and domino B as "she will buy a new car". The raise causes her to get a new car, but not vice versa.
Since we're told in the last sentence she definitely got the raise, this must mean she will definitely get the new car.
In terms of symbols, the law of detachment is stated as
- If P, then Q
- P is true
- Therefore Q is true
Side note: some books might use the term "modus ponens" instead of "law of detachment". They're the same thing.
Answer:
length(noun)
the linear extent in space from one end to the other; the longest dimension of something that is fixed in place "the length of the table was 5 feet"
duration, length(noun) continuance in time "the ceremony was of short duration"; "he complained about the length of time required"
length(noun)
the property of being the extent of something from beginning to end
"the editor limited the length of my article to 500 words"
distance, length(noun)
size of the gap between two places
"the distance from New York to Chicago"; "he determined the length of the shortest line segment joining the two points"
length(noun)
a section of something that is long and narrow
"a length of timber"; "a length of tubing"
