What is a number that multiplies a variable in a term ?

Mathematics

2 answers:

galina1969 [7]3 years ago

8 0

Answer:

The number that multiplies a variable in a term is called coefficient.

Step-by-step explanation:

Consider the algebraic expression shown below, terms are the elements that are separated by the operating symbols (plus or minus signs).

$2x^2+3y+7xy+5$

The above example has 4 terms $2x^2,\ 3y,\ 7xy, \text{and}\ 5$

Variable:

The letters represent the variable in an algebraic expression. In the above algebraic expression <em>x</em> and <em>y </em>are the variables.

Coefficients:

The numerical part of the term is known as coefficient. In the above algebraic expression the coefficient of the first terms i.e. $2x^2$ is 2 second term i.e $3y$ is 3 and third term i.e. $7xy$ is 7.

Hence, the number that multiplies a variable in a term is called coefficient.

kirill [66]3 years ago

7 0

<h3>A number that multiplies a variable in a term is known as a coefficient.</h3>

Given the term: 6x^3, we can identify three parts:

The coefficient, 6, is the constant that is being multiplied by the variable.

The variable, x, is a number with an unknown value, or with multiple potential values.

The exponent, 3, is the power with which the variable is being raised to.

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[Precalculus] Use trigonometric identities to express:

ehidna [41]

Remark

<u>Two facts.</u>

1) Tan(x) = Sin(x) / Cos(x)

2) Csc(x) and Sin(x) are reciprocal relationships. When multiplied together, they equal 1.

Solution

So Csc(x) * tan(x) = csc(x) * sin(x) / cos(x) = 1/cos(x) = sec(x)

So far what we have is tan^2(x) + sec(x). We have to get rid of tan^2(x)

Use the identity of 1 + tan^2(x) = sec^2(x)

tan^2(x) = sec^2(x) - 1

sec^2(x) - 1 + sec(x)

a^2 + a - 1 <<<<<< Answer

B is the answer.

4 0

3 years ago

In how many ways you can form a combination of 3 numbers and 3 letters in a plate number if repetition is allowed

Lapatulllka [165]

Your plate numbers will be like

$xxxyyy$

where each $x$ is a number, and each $y$ is a letter. Assuming you can use all numbers and letters, you have 10 possible choices for every $x$ place (all the digits from 0 to 10) and 26 possible choices for every $y$ place (all the letters from a to z).