Question

Please answer question :) need help

Answer 1

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

Step-by-step 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

Answer 2

Answer:

C. 1/3

Step-by-step explanation:

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

a(b - c*c)

turns into:

$\frac{2}{3} (\frac{3}{4}-(\frac{1}{2}*\frac{1}{2}))$

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:

$\frac{2}{3}(\frac{3}{4}-\frac{1}{4})$

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

$\frac{2}{3}(\frac{1}{2})$ = 1/3

Therefore your answer is C. 1/3