Question

выполните действия (2 целых 1/2)во 2 степени * 8/15 - 5/9 срочно надо!!!!!1

Answer 1

(2 1/2)²*8/15-5/9=(5/2)²*8/15-5/9=25/4*8/15-5/9=100/15-5/9=20/3-5/9=60-5/9=55/9

Answer 2

Calculation: (2 + 1/2)^2 * 8/15 - 5/9

To solve this calculation, we'll follow the order of operations (PEMDAS/BODMAS). Let's break it down step by step:

Step 1: Evaluate the expression inside the parentheses: (2 + 1/2) - 2 + 1/2 = 2 1/2 or 5/2

Step 2: Square the result from Step 1: (5/2)^2 - (5/2)^2 = 25/4

Step 3: Multiply the result from Step 2 by 8/15: (25/4) * (8/15) - To multiply fractions, multiply the numerators together and the denominators together: (25/4) * (8/15) = (25 * 8) / (4 * 15) = 200/60

Step 4: Subtract 5/9 from the result of Step 3: 200/60 - 5/9 - To subtract fractions, find a common denominator and then subtract the numerators: The common denominator for 60 and 9 is 180. (200/60) - (5/9) = (200 * 3) / (60 * 3) - (5 * 20) / (9 * 20) = 600/180 - 100/180 = (600 - 100) / 180 = 500/180

Therefore, the result of the calculation (2 + 1/2)^2 * 8/15 - 5/9 is 500/180.

Please note that the result can be simplified further if needed.