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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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Q&A Comments (48)
Co-authored Articles (134)
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...
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 Use the Quadratic Formula to Find Solutions to Quadratic Equations
You can use a few different techniques to solve a quadratic equation and the quadratic formula is one of them. The coolest thing about the formula is that it always works.. 11 May 2022. You can apply it to any quadratic ...
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 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
Multiply With Your Hands
Being able to multiple with your fingers is a valuable skill to have, and people have been doing it for quite a long time! We may have cellphone calculators, but in many cases it is actually easier to keep your phone in ...
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 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
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 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 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
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 Figure Out Your Test Score
Learn how to calculate your grade with these easy steps!If your test score wasn't converted to a percentage or letter grade by your teacher, don't worry! You can easily calculate your test grade using a few simple steps....
How to Calculate the Surface Area of a Cube (By Length or Volume)
Easy formulas and step-by-step instructions (with example problems)The surface area of an object is the combined area of all of the faces on its surface. All 6 faces of a cube are identical, so to find the surface area o...
How to Do Fractions on a Calculator: 6 Step-by-Step Methods
Quick ways to type fractions on online and offline calculatorsCalculating 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...
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
Read Odds
If you bet on sporting events, you must be able to read odds and understand what they mean. Furthermore, you need to quickly calculate the potential winnings for different bets, especially if the odds are changing while ...
How to Find the Area & Perimeter of Irregular Shapes
Learn 2 methods for finding the area of any irregular shapeThere are several math formulas for finding the area of basic shapes like squares, triangles, and rectangles. But what happens when they're combined to form an i...
