Mathematics Fundamentals
Public flashcard deck about Mathematics Fundamentals. 8 cards.
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What is the order of operations (PEMDAS/BODMAS)?
Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Define a prime number.
A prime number is a whole number greater than 1 that has only two divisors: 1 and itself.
What is the formula for the area of a circle?
Area = πr², where π (pi) is approximately 3.14159 and r is the radius of the circle.
Explain the difference between a rational and an irrational number.
A rational number can be expressed as a fraction p/q, where p and q are integers and q ≠ 0. An irrational number cannot be expressed as a fraction of two integers.
What is the Pythagorean theorem?
In a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. a² + b² = c²
Define the term 'variable' in algebra.
A variable is a symbol (usually a letter) that represents an unknown or changeable value.