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Chapter 1: Q24. (page 30)

Evaluate each expression if a=-6, b=6 and c=2.8

-c-a

Short Answer

Expert verified

The absolute value of expression is-8.8.

Step by step solution

01

Step1- Order of evaluation

To evaluate any expression involving one operation, follow the below order of operation

  • First replace the algebraic expression inside the grouping symbols like matrix brackets ( ) with numeric expression
  • Perform the subtraction inside the bracket
  • Evaluate the absolute value
02

Step2- Simplify the expression inside grouping symbol

To evaluate the value of given expression , simply the expression inside the bracket and then find the absolute value of expression as shown below

鈭�|c鈭�a|=鈭�|2.8鈭�(鈭�6)|=鈭�|2.8+6|=鈭�|8.8|

03

Step3- Find the absolute value of expression inside the bracket

The absolute value of -8.8=-8.8.

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Answer the question that was posed at the beginning of the lesson.

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