Close

## What is V Lxwxh?

embed_code=1. Use multiplication (V = l x w x h) to find the volume of a solid figure. In this lesson you will find the volume of a solid figure by multiplying dimensions and connecting this to the volume formula. Created by Jacqueline Cooke.

V = lwh

V = Bh

## What is V pi * r 2 * H?

The formula for the volume of a cylinder is V=Bh or V=πr2h .

## What is a literal equation?

A literal equation is an equation which consists primarily of letters. Formulas are an example of literal equations. Each variable in the equation “literally” represents an important part of the whole relationship expressed by the equation.

## Why do we solve literal equations?

are both literal equations. When given a literal equation, you will often be asked to solve the equation for a given variable. The goal is to isolate that given variable.

## What is an example of a literal equation?

A literal equation is one that has several letters or variables. Examples include the area of a circle (A=πr2) and the formula for speed (v=Dt). If the unknown variable is in the denominator, we multiply both sides by the lowest common denominator (LCD) and then continue to solve.

## What are literal equations used in real life?

Solving literal equations is often useful in real life situations, for example we can solve the formula for distance, d = rt, for r to produce an equation for rate. We will need all the methods from solving multi-step equations. Solving for one variable in a formula.

## What is a real life example of a linear equation?

Linear equations can be a useful tool for comparing rates of pay. For example, if one company offers to pay you \$450 per week and the other offers \$10 per hour, and both ask you to work 40 hours per week, which company is offering the better rate of pay? A linear equation can help you figure it out!

## What are some real life examples of inequalities?

Situation Mathematical Inequality
Speed limit Legal speed on the highway ≤ 65 miles per hour
Credit card Monthly payment ≥ 10% of your balance in that billing cycle
Text messaging Allowable number of text messages per month ≤ 250
Travel time Time needed to walk from home to school ≥ 18 minutes

## What is a real life example of a quadratic function?

Throwing a ball, shooting a cannon, diving from a platform and hitting a golf ball are all examples of situations that can be modeled by quadratic functions. In many of these situations you will want to know the highest or lowest point of the parabola, which is known as the vertex.

## How do engineers use quadratic equations?

Automotive engineers also use them to design brake systems. Electrical and chemical engineers work with many complex systems that involve quadratic equations. So do computer engineers. Audio engineers use these equations to design sound systems that have the best sound quality possible.

Simon Stevin

## How does the military use quadratic equations?

The military uses the quadratic equation when they want to predict where artillery shells hit the earth or target when fired from cannons. So if your goal is to go into the military and work with artillery or tanks, you will be using the quadratic equation on a daily basis.

## Why do we set quadratic equations equal to zero?

The roots are the points where y = 0. You want to factor the equation to the form y = (x – a)(x – b). If you multiply two numbers and their product is 0, then one of the numbers must be 0. That is why we set the quadratic equal to 0.

## Why do we learn quadratic equations?

So why are quadratic functions important? Quadratic functions hold a unique position in the school curriculum. They are functions whose values can be easily calculated from input values, so they are a slight advance on linear functions and provide a significant move away from attachment to straight lines.

2021-01-29