Users' questions

What is the hardest math question ever?

What is the hardest math question ever?

Today’s mathematicians would probably agree that the Riemann Hypothesis is the most significant open problem in all of math. It’s one of the seven Millennium Prize Problems, with $1 million reward for its solution.

What is the hardest math problem in the world with an answer?

But those itching for their Good Will Hunting moment, the Guinness Book of Records puts Goldbach’s Conjecture as the current longest-standing maths problem, which has been around for 257 years. It states that every even number is the sum of two prime numbers: for example, 53 + 47 = 100.

Where can I get maths answers?

Which app is best for math solution?

  • Photomath. Photomath is probably the best app for solving mathematical problems.
  • iMathematics. iMathematics lets you type in equations and solves them for you.
  • MyScript Calculator.
  • PCalc.
  • Graphing Calculator.
  • Khan Academy.
  • Meritnation.
  • Mathematicus.

What are the 6 unsolved math problems?

The problems consist of the Riemann hypothesis, Poincaré conjecture, Hodge conjecture, Swinnerton-Dyer Conjecture, solution of the Navier-Stokes equations, formulation of Yang-Mills theory, and determination of whether NP-problems are actually P-problems.

What is the most impossible math equation?

In 2019, mathematicians finally solved a math puzzle that had stumped them for decades. It’s called a Diophantine Equation, and it’s sometimes known as the “summing of three cubes”: Find x, y, and z such that x³+y³+z³=k, for each k from 1 to 100.

What is the easiest math problem?

The Collatz Conjecture is the simplest math problem no one can solve — it is easy enough for almost anyone to understand but notoriously difficult to solve.

What maths should a 11 year old know?

Children are working to extend their knowledge of whole numbers, fractions and decimals and this is the main focus for numeracy development at this stage. 11-12 year olds are placing decimals and fractions on number lines and have been introduced to the concept of positive and negative numbers.

How to calculate the number of half lives?

Answer: Calculate the number of half-lives; 0.003 seconds x 1 half-life = 3 half-lives 0.001 second • After 0 half-lives, 10 g ar6 left. After 1 half-life, 5 g’are left. After 2 half-lives, 2.5 g are left.

What are the half lives of X and Y?

Two radioactive sources X and Y have half-lives of 3.0 hours and 2.0 hours, respectively. The product of the decay is a stable isotope of the element Z. Six hours ago a mixture contained the same n…

What are the half life problems of PD-100?

Half-Life Problems #1 – 10. (1/2) 3 = 0.125 (the amount remaining after 3 half-lives) 100.0 g x 0.125 = 12.5 g remaining Problem #2: Pd-100 has a half-life of 3.6 days.

What is the half life of Xe-133?

A significant amount of radioactivity (say 1025 Bq) is released in the environment by a radiological terrorist attack of an isotope with a half-life of 109 years. Without resorting to a calculation… The half-life of Xe-133 is 126 hours. Starting with 250 mg, after 500 hours, around how many mg remain?