A small graphic that represents a file, folder, or program. Double-click an icon to open it.
Your Internet Service Provider. The company you pay to get internet access, like Comcast or AT&T.
A unique string of numbers that identifies each device on a network. Like a virtual return address.
Insurance, simply put, is spending money to buy protection. It involves roles like the policyholder, the insured, and the insurer. Common products include health insurance, critical illness insurance, and accident insurance. Understanding terms like the cooling-off period and waiting period can help you avoid pitfalls.
Simply put, an inequality is a math expression that connects two numbers or formulas using symbols like greater than, less than, or not equal to, showing that their sizes are different. It can express a math statement or be used to solve real-life estimation problems, like figuring out a budget limit or a passing score.
An isosceles triangle is a triangle that has at least two equal sides. The two equal sides are called the legs, and the other side is called the base. The angle between the legs is called the vertex angle, and the angles between a leg and the base are called the base angles. When solving related problems, if the problem doesn't specify which side is the leg or the base, you usually need to consider different cases.
An isosceles trapezoid is a special type of trapezoid with equal legs. It's a symmetrical shape, with one pair of opposite sides parallel but not equal, and the other pair not parallel but equal in length. It's a common shape you come across when learning geometry.
A 20-sided polygon is a closed shape with 20 sides and 20 vertices, and the sum of its interior angles is 3240 degrees.
A icosahedron is a type of symmetrical polyhedron with 20 faces, 12 vertices, and 30 edges, where each face is an equilateral triangle, and it's one of the five Platonic solids.
Inverse proportion refers to two related quantities where if one changes, the other changes as well. If the product of the two corresponding numbers always stays the same, these two quantities are called inversely proportional.
Industry is the sector that involves extracting natural resources and processing and reprocessing mined materials and agricultural products, providing basic material support for the national economy.
The integral of a function is a core concept in calculus. Simply put, it's the process of finding the antiderivative or calculating the accumulated quantity. It mainly falls into two categories: indefinite integrals and definite integrals.
There’s a clear difference between data analysis in tech and business, and understanding this gap helps you use tools and methods more accurately.
Interest is the extra cost or earnings you get when you borrow or save money—basically, it's the fee for using money.
An interior alternate angle is the angle that lies in between two lines when they're crossed by a third line, sitting on opposite sides. It’s an important tool in middle school geometry to figure out if lines are parallel.
An interior angle usually refers to the angle inside a polygon formed by two adjacent sides. It's most common in math, but the term is also used in sports.
It's a core concept in number theory, basically understood as the 'reciprocal' under modular arithmetic.
Inverse operation is basically 'calculating in reverse'—a method to find the original number when you know the result. It can undo the previous calculation steps, kind of like time going backward.
It refers to the mathematical concept of describing a system through the relationship between inputs and outputs.
An irrational number is a real number that can't be expressed as an integer or a fraction. If you write an irrational number in decimal form, it will have an infinite number of digits after the decimal point with no repeating pattern, so it's also called a non-repeating infinite decimal.
The infinite monkey theorem says that if a monkey types randomly forever, it will almost surely type out any text—it's a classic thought experiment in probability theory.
Imaginary numbers are a special kind of number in math, used to represent the square root of negative numbers. The key is the imaginary unit i, which satisfies i² = -1. They combine with real numbers to form complex numbers, giving solutions to equations that couldn’t be solved before.
The imperial system is the traditional system of measurements in the UK, with main units like feet, pounds, and gallons. Conversions are complicated, and it's mostly been replaced by the metric system now, but places like the US still use it a lot.