David Jia
Academic Tutor
Education
- University of Miami, Bachelor’s degree in Business Administration.
Professional Achievements
- Featured educator for Larson Texts, Big Ideas Learning, and Big Ideas Math.
Philosophy
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Co-authored Articles (125)
13 Ways to Pick Winning Numbers in the Lottery
Let statistics, random chance, or your intuition guide your lotto picksThough playing the lottery is a game of chance, that doesn’t mean people don't have strategies for choosing the numbers they play. Some of these st...
How to
Calculate a Square Root by Hand
In the days before calculators, students and professors alike had to calculate square roots by hand. Several different methods have evolved for tackling this daunting process, some giving a rough approximation, others gi...
Easy-to-Follow Methods for Adding Fractions
Learn to add like fractions, unlike fractions, and mixed numbersAdding fractions is an incredibly handy skill to know not only in school but also for everyday things like calculating cooking measurements. This article wi...
How to
Solve a Cubic Equation
In a cubic equation, the highest exponent is 3, the equation has 3 solutions/roots, and the equation itself takes the form ax^3+bx^2+cx+d=0. While cubics look intimidating and unlike quadratic equation is quite difficult...
How to
Find the Center of a Circle
Finding the center of a circle can help you perform basic geometric tasks like finding the circumference or area. There are several ways to find the center point! You can draw crossed lines, you can draw overlapping circ...
How to Complete the Square to Solve a Quadratic Equation
A walkthrough for the entire process of completing the squareCompleting the square is a helpful technique that allows you to rearrange a quadratic equation into a neat form that makes it easier to visualize or even solve...
How to Calculate Percentages on a Calculator
Learn how to quickly perform common percentage calculationsWhether you're working on your math homework or trying to leave a tip at a restaurant, a calculator can help you figure out the percentage of a number quickly an...
How to
Write Fractions on a Calculator
Calculating numbers that contain fractions can be tricky, even when you’re using a calculator. You may be able to write a fraction on a calculator using the fraction button. If your calculator doesn’t have this featu...
How to
Find the Height of a Triangle
To calculate the area of a triangle you need to know its height. To find the height follow these instructions. You must at least have a base to find the height.
How to
Measure Grams
The gram is the basic unit of measurement for weight and mass in the metric and SI measurement systems. It is often used to weigh small items, such as dry goods in a kitchen. The only way to accurately measure in grams i...
How to
Calculate Lotto Odds
Everyone's heard comparisons between the odds of winning the lottery and the odds of other unlikely events, like getting struck by lightning. It's true, the odds of winning the jackpot on a game like Powerball or another...
How to
Calculate Odds
The mathematical concept of '' odds '' is related to, yet distinct from the concept of '' probability. '' In simplest terms, odds are a way of expressing the relationship between the number of favorable outcomes in a giv...
How to
Solve for X
There are a number of ways to solve for x, whether you're working with exponents and radicals or if you just have to do some division or multiplication. No matter what process you use, you always have to find a way to is...
How to
Find a Square Root Without a Calculator
Calculating square root is easy if you have a perfect square. If you don’t, there’s a logical process you can follow to systematically figure out the square root of any number, even if you don’t use a calculator. Y...
How to
Calculate the Area of a Triangle
The most common way to find the area of a triangle is to take half of the base times the height. Numerous other formulas exist, however, for finding the area of a triangle, depending on what information you know. Using i...
How to Cancel Out a Natural Log (ln)
Solving a natural log is a breeze with this easy, understandable guide Solving an equation for x when a natural logarithm is involved can definitely leave you scratching your head. That little ''ln'' is stopping you from...
How to Solve a Quadratic Equation: A Step-by-Step Guide
Learn factoring, the quadratic formula, or completing the squareA quadratic equation is a polynomial equation in a single variable where the highest exponent of the variable is 2. There are three main ways to solve quadr...
How to Cross Multiply Fractions
Make cross multiplication fun and easy with these tips and tricksCross-multiplication is a nifty method to use when you have to solve for an unknown variable in an equation where two fractions are set equal to one anothe...
How to
Find the Domain and Range of a Function
Every function contains two types of variables: independent variables and dependent variables, whose values literally “depend” on the independent variables. For example, in the function ''y'' = ''f''(''x'') = 2''x'' ...
How to
Subtract Fractions from Whole Numbers
Subtracting fractions from whole numbers isn't as hard as it looks. There are two main ways to go about it: you can either convert the whole number into a fraction, or subtract 1 from that whole number and convert the 1 ...
