Mathematicians

John Napier, renowned for his work involving logarithms was born in 1550 and died in 1617.

a mechanical adding machine.

David Hilbert made approximations on geometry

No, he was at least 1800 years too late!

When we apply Euler's rule to polyedra, we generally term it the Euler characteristic. We'll find that every polyhedron will follow the rule. That rule is V - E + F= 2, where V = number of vertices, E = number of edges, and F = number of faces. The formula can appear in different forms, as you might guess, and just one is E + F - 2 = V. That said, no, it is not possible to construct a polyhedron that violates the Euler characteristic.

7,400,000cm = 74,000m

74,000m = 74km

therefore there are 74km in 7.4million cm

Copernicus was the first scientist to postulate that our solar system was heliocentric. Until that time, everyone "knew" that the earth was the center of the solar system - everything else, including the sun, revolved around the earth. Copernicus got considerable grief for his views, and it was several more centuries before it was universally accepted that he was correct - the solar system is heliocentric.

The important thing in a fraction is the relationship between the numerator and the denominator. Say there are four bran muffins on the table and you grab three of them. You have 3/4 of the total number of muffins. Now cut each muffin in half. You have six pieces and there are two on the table. You have 6/8 of the total of muffin pieces. The amount of muffin overall hasn't changed, nor has the amount you have.

He could have 5 cents.

180 days × 7 hours/day = 1260 hours

24 hours = 1 day

→ 1260 hours = 1260 ÷ 24 days = 52 ½ days.

His suggestion was that the Sun is at the centre of the solar system. It was proved in the 18th century after Isaac Newton's laws of motion and the law of gravity were applied to demonstrate that the Sun is far more massive than all the planets.

Nicolaus Aloysius Gallagher died in 1918.

Euclid's Nightmare was created on 1997-03-02.

A Mersenne prime has the form 2n-1 and n is prime. Examples are the Mersenne prime 7 (23 - 1 = 7) and the Mersenne prime 127 (27 - 1 = 127). The first forty Mersenne primes are 2, 3, 5, 7, 13, 17, 19, 31, 61, 89, 107, 127, 521, 607, 1279, 2203, 2281, 3217, 4253, 4423, 9689, 9941, 11213, 19937, 21701, 23209, 44497, 86243, 110503, 132049, 216091, 756839, 859433, 1257787, 1398269, 2976221, 3021377, 6972593, 13466917, and 20996011.

The history of the development of mathematics is a long one. No single person is given credit for the "discovery" of mathematics. As man lived in caves before any written language existed, he understood the nature of the first few numbers, the counting numbers. He could make simple comparisons and could tell that, say, 9 was more than 6. He would be able to see that if he had, say, 8 apples and there were 7 people in his group, each would get one and there would be one left over. This is the beginning of mathematics. It evolved into more abstract forms later and through the work of many dedicated investigators and problem solvers. Whether we look at the Babylonian or Egyptian mathematical systems (which were, in turn, furthered by Greeks and Romans) or skip over to the early (and independently arising) works in the Americas (the Incas), we see man's intuitive grasp of the nature of numbers. We also see him extend the ideas to broader areas in structure and construction. A link is provided below, and a cursory reading is strongly encouraged.

the element

Rene Descartes was a French mathematician and in the early 17th century he introduced what we call today the Cartesian coordinate plane in which graphs are plotted.

he invented the globe

Roman Catholic

barbara, watzenrode lucas young and old, i do not know

The mean value theorem can be applied to all continuous functions (or expressions), and so it is applicable here.

There is no equation in te question and furthermore, no c (other than the first letter of cos in the expression so there are no values for c to satisfy anything!

11 times with a remainder of 1

Yes 200m is larger than 20000mm. 1m=1000mm therfore 20000mm=20m.

22 yd = 66 ft