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Chapter 1: Q28. (page 24)

State the absolute value of the number.

21

Short Answer

Expert verified

The absolute value is21.

Step by step solution

01

Step-1 – Absolute value of a number

Absolute value of any positive or negative number is always positive and equal to the magnitude of the number. The absolute value of a number N is denoted by N.

The absolute value of a number represents the distance of the number from 0 in the number line.

02

Step-2 – Example of Absolute value

The absolute value of 3 is denoted by 3and is equal to 3.

And the absolute value of -4is denoted by -4and is equal to 4.

03

Step-3 – Evaluate the absolute value

The number 21 is at a distance of 21 units to the right of 0 on the number line.

So, the absolute value of the given number 21 is given by

21=21

Thus, the absolute value of the given number is 21.

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Most popular questions from this chapter

DVD Rentals You belong to an online DVD rental service. Your yearly rental budget is \(200. Each rental costs \)4.

a. Copy and complete the table.

b. Write a variable expression for the cost of r rentals.

c. Write a variable expression for the amount of your budget left after r rentals.

d. Writing How many DVDs will you be able to rent before the $200 is spent? Explain how you found your answer.

Logical Reasoning Describe the pattern shown in the table. Then write a variable expression involving n to complete the table. In the table, the three dots indicate that the pattern continues.

Write the power in words and as a repeated multiplication. Then evaluate the power:

122

Evaluate the experssion when a=4, b=2,andc=16

localid="1647950126092"  a+b

Evaluate the expression9.8+2.27−5.
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