Question

43,4×1,5+7²×15-1,1²×15​

Answer 1

Ответ :

13405,35

Пошаговое объяснение:

43,4×1,5+7²×15-1,1²×15 = 13405 7/20 = 13405,35

Answer 2

To calculate the expression 43.4 × 1.5 + 7² × 15 - 1.1² × 15, you should follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right).

Here's the step-by-step calculation:

1. Calculate the exponentials:

   • 7² = 49
   • 1.1² = 1.21

2. Multiply these values by 15:

   • 49 × 15 = 735
   • 1.21 × 15 = 18.15

3. Now, let's rewrite the expression with the calculated values: 43.4 × 1.5 + 735 - 18.15

4. Perform the multiplications and additions/subtractions from left to right:

   • 43.4 × 1.5 = 65.1
   • 65.1 + 735 = 800.1
   • 800.1 - 18.15 = 781.95

So, the result of the expression 43.4 × 1.5 + 7² × 15 - 1.1² × 15 is approximately 781.95.