The exact date is not known for when John Wallis invented the number line. It is known, however, that it was between the years of 1700 and 1703.
they are both in chronological order
increased the number of British troops in the colonies.
If the points that are ON the line satisfy the inequality then the line should be solid. Otherwise it should be dotted. Another way of putting that is, if the inequality is given in terms of ≤ or ≥, then use a solid line. If they are < or > use a dotted line.
If the signnn is less than then it is below the line , if it is more than than it is above the line, that is the shaded region, If the signnn is less than then it is below the line , if it is more than than it is above the line, that is the shaded region,
Spain and Portugal.
John Wallis, who is also credited with several trigonometry contributions, invented the number line in 1695. By so doing, he helped people understand negative numbers better.
The concept of a number line has been used by mathematicians for centuries, so it is difficult to attribute its invention to a specific individual. However, the number line as we know it today was popularized by a German mathematician named Georg Cantor in the late 19th and early 20th centuries. Cantor's work on set theory and the continuum helped to solidify the use of the number line as a visual representation of the real numbers.
Henry Ford did not invent the assembly line. He did however perfect that process in Detroit, Mich.
He did not invent the assembly-line
Although he did invent the assembly line, he also invented the Model T Ford automobile.
The assembly line
made it more efficient
they invented in-line roller blades
Ford did not invent the car, he innovated the assembly line process for making cars.
he invented it in 1864
Yes, Lance Hill invented the Rotary Clothes Line in 1945
Henry ford did not invent cars, he invented a line of free-moving vehicles that did not need horses to pull it, it involved engines that were never before seen by the human eye.a ford