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Please answer question :) need help

Please answer question :) need help-example-1
User Thalia
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2 Answers

5 votes

Answer:

C. 1/3

Explanation:

Replace each letter with their corresponding value and simplify using the order of operations:

a(b - c*c)

turns into:


(2)/(3) ((3)/(4)-((1)/(2)*(1)/(2)))

You want to remember that order of operations follows the rules of PEMDAS. The operations within the parentheses come first.

1/2 times 1/2 = 1/4

Now we have:


(2)/(3)((3)/(4)-(1)/(4))

Then 3/4 - 1/4 = 2/4 = 1/2


(2)/(3)((1)/(2)) = 1/3

Therefore your answer is C. 1/3

User Mohammed Osman
by
5.9k points
7 votes

Answer:

C. 1/3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Explanation:

Step 1: Define

Identify

a = 2/3

b = 3/4

c = 1/2

a(b - c²)

Step 2: Evaluate

  1. Substitute in variables: 2/3[3/4 - (1/2)²]
  2. [Brackets] Exponents: 2/3(3/4 - 1/4)
  3. (Parenthesis) Subtract: 2/3(1/2)
  4. Multiply: 1/3
User Sww
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5.9k points