A system of equations is a set of two or more equations, and the solution needs to satisfy all the equations at the same time. Simply put, it’s like putting a few formulas together, and the unknowns inside (like x, y) have to be the same number in all the formulas in order to get the result.
The Fibonacci sequence is a series where each term from the third one onward equals the sum of the two preceding terms. A common sequence is 0, 1, 1, 2, 3, 5, 8… It was introduced by the Italian mathematician Fibonacci in 1202 and is famous because of the rabbit reproduction problem. It's also called the 'rabbit sequence' or the 'golden ratio sequence'.
Azimuth is the horizontal angle measured clockwise from the north direction at a point to the target direction, ranging from 0° to 360°.
In a fraction, the number or algebraic expression written below the fraction line is called the denominator.
It's a unit that represents the ratio of sound intensity or electrical signal power, usually shown as dB. It's mainly used to measure how loud or soft a sound is.
A fraction line is the horizontal line drawn between the numerator and the denominator. Sometimes, this line can also appear as a slash '/', with the numerator on the left and the denominator on the right.
Analyzing data usually refers to using statistical methods to organize, study, and summarize a large amount of collected data, extracting useful information and forming conclusions to help with business or operational decisions. In English, it's commonly called Data Analysis or Analyze Data.
Fraction subtraction mainly depends on whether the denominators are the same. If they are, just subtract the numerators. If they're different, find a common denominator first, then subtract, and simplify the result if possible.