#### How to Calculate Sales Tax & Do We Need to Collect?

How to calculate sales tax? When you buy something, you may not think about the taxes that have been added to the price. In the United States, sales tax is a common way to collect money from consumers. Each state has its own sales tax, and some cities add their own taxes on top of that. Sales tax can be […]

#### Rational Function: End Behavior of Rational Functions

What is rational function & end behaviour of rational functions? A rational function is a ratio of polynomials where the polynomial in the denominator shouldn’t be equivalent to zero. Isn’t it reaching the definition of a rational number (which is of the form p/q, where q ≠ 0)? Did you know rational functions see the application in different fields in […]

#### How Many Tablespoons in 3/4 Cups? Quick Conversions

How Many Tablespoons in 3/4 Cups? Here’s the answer you’re searching for, in a super convenient format! Keep this conversion handy for any time you need to convert tablespoons, teaspoons, and cups.  Whether you need to split a recipe in half, double it or you’re just weirdly curious about conversions (hey, no judgments!), you’ll want to bookmark this page so […]

#### How Many Inches is 5′ 8”? All Related Questions

If you’ve been wondering how many inches 5 feet 8 inches is, you’ll find the answer below. For the conversion of 5′ 8″ to inches, we have to know that 12 inches make up one foot, so the feet to inch formula is [in] = [ft] * 12. Therefore, to get 5 foot 8 inches in inches, we have to […]

#### Degrees of Freedom: Formula, Explanations, & Principle

A degree of freedom definition is a mathematical equation used primarily in statistics, but also in physics, mechanics, and chemistry. In a statistical calculation, the degrees of freedom indicate the number of values that can vary in the calculation. Degrees of freedom can be calculated to ensure the statistical validity of t-tests, chi-square tests, and even the more elaborated f-tests. […]

#### Constant of Proportionality: How to Solve it?

The relationship between two variables can be expressed as y = kx or y = k/x if both variables are directly or indirectly proportional to one another. In this case, k determines how the two variables are related. It is known as the constant of proportionality. What is the Constant of Proportionality? A constant of proportionality is the ratio between […]

#### How Much Does A Gallon Of Water Weigh In Different Temperatures

One gallon of water weighs 3.78 kilograms or 8.33 pounds when at room temperature. Water’s density, in turn, depends on its storage temperature, which determines its precise density. When you explore our handy guide below, you can learn more about water weight, use our water weight calculator, and see our water weight reference chart. How Much Water In One Gallon? […]

#### Change Of Base Formula In Logarithms

In the example below, let’s see what the value of the expression would be log2(50) Ever since 50 does not represent a rational power of 2Without a calculator, it is difficult to estimate. The majority of calculators, however, only implement logarithms directly in base-10 and base-e. For this reason, to find the value of log2(50). The base of the logarithm must first be changed. Change in […]

#### Horizontal Stretch – Graphical Representation And Solutions

In some cases the graphs appear similar, but they may have different widths – and this is something that you may have already experienced. This might be because they may have been stretched horizontally by extending their base function. There are a number of techniques for writing functions graphs, but one of the most popular ones is horizontal stretching. Therefore, […]