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## How do you know if a triangle is acute obtuse or right using the Pythagorean Theorem?

Classifying Triangles You can determine whether a triangle is acute, right, or obtuse by its side lengths. In TABC with longest side c: If c2 a2 b2, then TABC is acute. If c2 a2 b2, then TABC is right.

## Which equation correctly solves the Pythagorean theorem a2 b2 c2 for B assuming a/b and c are positive?

Answer: Pythagorean Theorem: a2 + b2 = c2 b.

## What is a 2 B 2?

a2 – b2 = (a – b)(a + b) (a + b)2 = a2 + 2ab + b2. a2 + b2 = (a + b)2 – 2ab.

## What is 2a 2a?

2a times 2a is 2a aquared, because any number or variable times itself is that number or varible squared. The answer you want is 4(a squared).

## What is 2a A?

2a -a=a,e.g -2*3=6-3=3. klondikegj and 36 more users found this answer helpful. Thanks 19. 4.1. (17 votes)

2a means 2 × a.

## Are x2 and x3 like terms?

Just so, are x2 and x3 like terms? Like Terms. “Like terms” are terms whose variables (and their exponents such as the 2 in x2) are the same. In other words, terms that are “like” each other.

## How do you simplify expressions?

To simplify any algebraic expression, the following are the basic rules and steps:

1. Remove any grouping symbol such as brackets and parentheses by multiplying factors.
2. Use the exponent rule to remove grouping if the terms are containing exponents.
3. Combine the like terms by addition or subtraction.
4. Combine the constants.

## What is 5a in algebra?

5a would equal 5×2 = 10 (another way to write that is 5*2=10)

## What do you call the letters in algebra?

In algebraic expressions, letters represent variables. We call these letters “variables” because the numbers they represent can vary—that is, we can substitute one or more numbers for the letters in the expression. Coefficients. Coefficients are the number part of the terms with variables.

## Are 5a and like terms?

7a, -5a, -a, a/3 are the set of like terms. –xy, 5xy, -xy/11 are the set of like terms.

## What does it mean when a number has a letter next to it?

A Variable is a symbol for a number we don’t know yet. It is usually a letter like x or y. A number on its own is called a Constant.

## What is a number that does not stand by itself and is attached to a variable?

coefficient. a number that does not stand by itself it is attached to the variable.

## What is variable in 2x?

A variable is a symbol (usually a letter) in mathematical expressions and equations. Examples. Expression: 2x + 3 [the variable is x] Equation: x + 3 = 5 [the variable is x] Equation: x + x = 2x [the variable is x]

## What are the 3 types of variables?

A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.

## What happens when you add 2 variables?

Whether you add or subtract variables, you follow the same rule, even though they have different operations: when adding or subtracting terms that have exactly the same variables, you either add or subtract the coefficients, and let the result stand with the variable. For example: Addition.

## How do you explain variables to students?

The easiest way to explain variables to kids is with real-world examples. The number 3 is a constant. If you say there are 3 apples in a basket, everyone knows exactly how many apples they should expect to see. The number of apples in the basket is 3.

## What is an example of a real life variable?

The picture and the list below show some real-life examples, where the value of a variable changes with the change in place and time. The temperature in different places also change. The height of a growing child changes with time. The speed of a car changes with time.

## How do you explain a variable?

A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x, y, and z are common generic symbols used for variables.

## What is variable explain with example?

In mathematics, a variable is a symbol or letter, such as “x” or “y,” that represents a value. For example, a variable of the string data type may contain a value of “sample text” while a variable of the integer data type may contain a value of “11”.

## How are variables in mathematics important?

In addition to numbers, variables are commonly used to represent vectors, matrices and functions. Making algebraic computations with variables as if they were explicit numbers allows one to solve a range of problems in a single computation.

## What are the variables in maths?

In Maths, a variable is an alphabet or term that represents an unknown number or unknown value or unknown quantity. The variables are specially used in the case of algebraic expression or algebra. For example, x+9=4 is a linear equation where x is a variable, where 9 and 4 are constants.

## What are dependent and independent variables in maths?

The dependent variable is the one that depends on the value of some other number. Another way to put it is the dependent variable is the output value and the independent variable is the input value. So for y=x+3, when you input x=2, the output is y = 5.

## What is constant and variable in maths?

Constants are usually written in numbers. Variables are specially written in letters or symbols. Constants usually represent the known values in an equation, expression or in line of programming. Variables, on the other hand, represent the unknown values.

2019-11-26