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Chapter 1: Q39. (page 9)

Evaluate each expression ifw=6,x=0.4,y=12, andz=-3

39.w+12梅z

Short Answer

Expert verified

Expressionw+12梅z results into 2

Step by step solution

01

- Order for simplification 

To evaluate any expression involving more than one operation, follow the below order of operations:

  • First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
  • Evaluate the exponents.
  • Perform Multiplication and division from left to right.
  • Perform addition and subtraction from left to right.
02

- Substitute given values

Substitute 6 for wand -3forz into given expression

w+12梅z=6+12梅鈭�3

03

- Simplify 6+12÷-3

Now, to simplify follow order of simplification to get

6+12梅鈭�3=6+鈭�4=2

Thus, w+12梅z=2

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