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 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
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 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...
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
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 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
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 Find the Area of a Rectangle: Length x Width & Pythagorean Theorem
Solve any rectangle problem using these 2 formulasA rectangle is a quadrilateral with two sides of equal length and two sides of equal width that contains four right angles. To find the area of a rectangle, all you have ...
How to Cross Multiply Fractions
Plus, how to compare fractions & why cross multiplication worksCross-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 another....
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...
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 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
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
Use a Calculator
If it's your first time using a calculator, all the buttons and options can be a bit scary. But whether you're using a standard calculator or scientific calculator, the basics are pretty much the same. Once you learn wha...
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 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 ...
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...
