Question

(0,5)² - (0,5)³ ÷ 0,15

Answer 1

(1/2)2-(1/2)3:3/20,
1/4-1/8×20/3,
1/4-1/2×5/3,
1/4-5/6,
-7/12.

Answer 2

(0,5)² - (0,5)³ ÷ 0,15=-0.58333333333

Answer 3

To calculate the expression (0.5)² - (0.5)³ ÷ 0.15, follow the order of operations (PEMDAS/BODMAS):

1. First, perform the exponentiation: (0.5)² = 0.5 * 0.5 = 0.25 (0.5)³ = 0.5 * 0.5 * 0.5 = 0.125

2. Then, perform the division: (0.5)³ ÷ 0.15 = 0.125 ÷ 0.15 ≈ 0.8333333 (rounded to 7 decimal places)

3. Finally, subtract the result of the division from the result of the exponentiation: (0.5)² - (0.5)³ ÷ 0.15 ≈ 0.25 - 0.8333333 ≈ -0.5833333 (rounded to 7 decimal places)

So, the result of the expression is approximately -0.5833333.