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Chapter 1: Q15. (page 24)

Evaluate the expression when x=-3.

localid="1649133807572" 50-x

Short Answer

Expert verified

The value of the expressionis 47.

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 expression

To evaluate the value of the expression 50-x, substitute -3 for x and simplify further as shown below,

50鈭�x=50鈭�鈭�3=50鈭�3=47

Thus, the value of the given expression is 47.

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Most popular questions from this chapter

Evaluate the experssion when x=6

localid="1647949779257" 15-x

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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.

Evaluate the experssion when m=5andn=6

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