The value of the expression, 3 ⋅ ( − 7 ) .

Question

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Answer 1

Question

Chapter R.8, Problem 1DE

To determine

To calculate: The value of the expression, $3⋅(−7)$ .

Expert Solution & Answer

Answer to Problem 1DE

Solution:

The required value of the expression $3⋅(−7)$ is $−21_$ .

Explanation of Solution

Given information:

The provided expression is $3⋅(−7)$ .

Formula Used:

Follow the rules below to multiply two real numbers.

Step 1. To multiply two numbers with same sign, multiply the absolute values and make the result positive.

Step 2. To multiply two numbers with different sign, multiply the absolute values and make the result negative.

Step 3. If one number is zero, then its product with some other number is zero.

Calculation:

Consider the provided expression,

$3⋅(−7)$

A negative and a positive are multiplied in the above expression.

Now, multiply the absolute values and make the result negative

$7⋅3=21$

The result is made negative as below,

$3⋅(−7)=−21$

Hence, the value of the expression $3⋅(−7)$ is $−21$ .

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Answer 2

Question

Chapter R.8, Problem 1DE

To determine

To calculate: The value of the expression, $3⋅(−7)$ .

Expert Solution & Answer

Answer to Problem 1DE

Solution:

The required value of the expression $3⋅(−7)$ is $−21_$ .

Explanation of Solution

Given information:

The provided expression is $3⋅(−7)$ .

Formula Used:

Follow the rules below to multiply two real numbers.

Step 1. To multiply two numbers with same sign, multiply the absolute values and make the result positive.

Step 2. To multiply two numbers with different sign, multiply the absolute values and make the result negative.

Step 3. If one number is zero, then its product with some other number is zero.

Calculation:

Consider the provided expression,

$3⋅(−7)$

A negative and a positive are multiplied in the above expression.

Now, multiply the absolute values and make the result negative

$7⋅3=21$

The result is made negative as below,

$3⋅(−7)=−21$

Hence, the value of the expression $3⋅(−7)$ is $−21$ .

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter R.8, Problem 1DE

To determine

To calculate: The value of the expression, $3⋅(−7)$ .

Expert Solution & Answer

Answer to Problem 1DE

Solution:

The required value of the expression $3⋅(−7)$ is $−21_$ .

Explanation of Solution

Given information:

The provided expression is $3⋅(−7)$ .

Formula Used:

Follow the rules below to multiply two real numbers.

Step 1. To multiply two numbers with same sign, multiply the absolute values and make the result positive.

Step 2. To multiply two numbers with different sign, multiply the absolute values and make the result negative.

Step 3. If one number is zero, then its product with some other number is zero.

Calculation:

Consider the provided expression,

$3⋅(−7)$

A negative and a positive are multiplied in the above expression.

Now, multiply the absolute values and make the result negative

$7⋅3=21$

The result is made negative as below,

$3⋅(−7)=−21$

Hence, the value of the expression $3⋅(−7)$ is $−21$ .

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter R.8, Problem 1DE

To determine

To calculate: The value of the expression, $3⋅(−7)$ .

Expert Solution & Answer

Answer to Problem 1DE

Solution:

The required value of the expression $3⋅(−7)$ is $−21_$ .

Explanation of Solution

Given information:

The provided expression is $3⋅(−7)$ .

Formula Used:

Follow the rules below to multiply two real numbers.

Step 1. To multiply two numbers with same sign, multiply the absolute values and make the result positive.

Step 2. To multiply two numbers with different sign, multiply the absolute values and make the result negative.

Step 3. If one number is zero, then its product with some other number is zero.

Calculation:

Consider the provided expression,

$3⋅(−7)$

A negative and a positive are multiplied in the above expression.

Now, multiply the absolute values and make the result negative

$7⋅3=21$

The result is made negative as below,

$3⋅(−7)=−21$

Hence, the value of the expression $3⋅(−7)$ is $−21$ .

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter R.8, Problem 1DE

To determine

To calculate: The value of the expression, $3⋅(−7)$ .

Expert Solution & Answer

Answer to Problem 1DE

Solution:

The required value of the expression $3⋅(−7)$ is $−21_$ .

Explanation of Solution

Given information:

The provided expression is $3⋅(−7)$ .

Formula Used:

Follow the rules below to multiply two real numbers.

Step 1. To multiply two numbers with same sign, multiply the absolute values and make the result positive.

Step 2. To multiply two numbers with different sign, multiply the absolute values and make the result negative.

Step 3. If one number is zero, then its product with some other number is zero.

Calculation:

Consider the provided expression,

$3⋅(−7)$

A negative and a positive are multiplied in the above expression.

Now, multiply the absolute values and make the result negative

$7⋅3=21$

The result is made negative as below,

$3⋅(−7)=−21$

Hence, the value of the expression $3⋅(−7)$ is $−21$ .

Answer 6

Chapter R.8, Problem 1DE

To determine

To calculate: The value of the expression, $3⋅(−7)$ .

Expert Solution & Answer

Answer to Problem 1DE

Solution:

The required value of the expression $3⋅(−7)$ is $−21_$ .

Explanation of Solution

Given information:

The provided expression is $3⋅(−7)$ .

Formula Used:

Follow the rules below to multiply two real numbers.

Step 1. To multiply two numbers with same sign, multiply the absolute values and make the result positive.

Step 2. To multiply two numbers with different sign, multiply the absolute values and make the result negative.

Step 3. If one number is zero, then its product with some other number is zero.

Calculation:

Consider the provided expression,

$3⋅(−7)$

A negative and a positive are multiplied in the above expression.

Now, multiply the absolute values and make the result negative

$7⋅3=21$

The result is made negative as below,

$3⋅(−7)=−21$

Hence, the value of the expression $3⋅(−7)$ is $−21$ .

Answer 7

Chapter R.8, Problem 1DE

To determine

To calculate: The value of the expression, $3⋅(−7)$ .

Answer 8

Expert Solution & Answer

Answer to Problem 1DE

Solution:

The required value of the expression $3⋅(−7)$ is $−21_$ .

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Given information:

The provided expression is $3⋅(−7)$ .

Formula Used:

Follow the rules below to multiply two real numbers.

Step 1. To multiply two numbers with same sign, multiply the absolute values and make the result positive.

Step 2. To multiply two numbers with different sign, multiply the absolute values and make the result negative.

Step 3. If one number is zero, then its product with some other number is zero.

Calculation:

Consider the provided expression,

$3⋅(−7)$

A negative and a positive are multiplied in the above expression.

Now, multiply the absolute values and make the result negative

$7⋅3=21$

The result is made negative as below,

$3⋅(−7)=−21$

Hence, the value of the expression $3⋅(−7)$ is $−21$ .

Answer 12

Ch. R.8 - Prob. 1DE Ch. R.8 - Prob. 2DE Ch. R.8 - Prob. 3DE Ch. R.8 - Prob. 4DE Ch. R.8 - Prob. 5DE Ch. R.8 - Prob. 6DE Ch. R.8 - Prob. 7DE Ch. R.8 - Prob. 8DE Ch. R.8 - Prob. 9DE Ch. R.8 - Prob. 10DE

The value of the expression, 3 ⋅ ( − 7 ) .

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To calculate: The value of the expression, $3⋅(−7)$ .

Answer to Problem 1DE

Explanation of Solution

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Chapter R.8 Solutions

The value of the expression, 3 ⋅ ( − 7 ) .

Videos

To calculate: The value of the expression, 3⋅(−7)<m:math><m:mrow><m:mn>3</m:mn><m:mo>⋅</m:mo><m:mrow><m:mo>(</m:mo><m:mrow><m:mo>−</m:mo><m:mn>7</m:mn></m:mrow><m:mo>)</m:mo></m:mrow></m:mrow></m:math>.

Answer to Problem 1DE

Explanation of Solution

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Chapter R.8 Solutions

To calculate: The value of the expression, $3⋅(−7)$ .