Mathematicians

150 times

René Descartes believed in the concept of an absolute truth that could be established through reason and rational thought. He famously asserted "Cogito, ergo sum" ("I think, therefore I am"), positing that the very act of doubt or thinking is proof of one's existence and a foundational truth. Descartes sought to build knowledge on this certainty, arguing that through systematic doubt and methodical reasoning, one could arrive at undeniable truths about existence and the nature of reality. His approach laid the groundwork for modern philosophy and emphasized the importance of skepticism in the pursuit of knowledge.

It is usually calculated as the number of children (aged under 15 years) as a ratio of people of working age (ages 15 to 64). This ratio is currently in a state of flux because the pension age is being raised in many countries so that the denominator of the ratio covers a bigger age range.

Usually it does.

555.6

Charles Babbage primarily used brass, iron, and wood in the construction of his mechanical computers, notably the Analytical Engine and the Difference Engine. Brass was favored for its durability and precision in gears and other intricate parts, while iron provided strength for the frame. Wood was often used for the casing and structural components. His choice of materials reflected the technological capabilities of the 19th century, as well as his emphasis on precision engineering.

No, it does not.

9.201 is greater than 9.0

I'm leaving; there are too many polymaths in the room.

It is 12,000,001

Sophie Germain made significant contributions to number theory and elasticity. She is best known for her work on Fermat's Last Theorem, particularly for developing a method that proved the theorem for a certain class of prime numbers. Additionally, Germain contributed to the understanding of vibrations of elastic surfaces, leading to what is now known as Germain's theorem in elasticity. Her pioneering efforts in a male-dominated field also helped pave the way for future generations of women in mathematics.

An objects motion or speed is distance divided by time.

34 as a percentage of 68 is 50%

There are infinitely many decimals between any two numbers and so infinitely many which are less than 15.04: fr example, 2.1, or -7.35

To find a part of a number using models, you can use visual aids like fraction bars, pie charts, or number lines. For example, if you want to find 1/4 of 20, you can represent 20 with a set of 20 objects and divide them into four equal groups, resulting in 5 objects per group. Alternatively, you can multiply the number by the fraction (20 × 1/4 = 5) to calculate the part directly. These models help illustrate the concept of partitioning and make it easier to understand.

It is: 3/4 of 64 = 48

George

1.222... = 1 2/9 = 11/9

It is an isosceles prism.

As a product of its prime factors: 2*2*2*257 = 2056

Mean

All the powers and exponents of 1 are 1.The powers and exponents of any of the other numbers up to 10 are equivalent to the all the positive numbers - rational and irrational.

90

circle graph /aka/ pie chart