Question

-4.9*( -2/1/17)*(-7.2+1/7/15)

Answer 1

Ответ:жоқ шошаңбас

Пошаговое объяснение:

Answer 2

To solve the expression, follow the order of operations (PEMDAS/BODMAS):

1. Parentheses
2. Exponents/Orders (none in this case)
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's break down the expression step by step:

Step 1: Inside the parentheses: -7.2 + 1/(7/15)

Step 2: Divide the fraction (7/15): -7.2 + 15/7

Step 3: Convert -7.2 to a fraction with a common denominator: (-7.2 * 10/10) + 15/7 -72/10 + 15/7

Step 4: Find the common denominator (10 * 7 = 70): (-72/10) * (7/7) + 15/7 -504/70 + 15/7

Step 5: Combine the fractions by finding a common denominator (70): (-504 + 150) / 70 -354 / 70

Step 6: Simplify the fraction: -177/35

Now, the expression becomes:

-4.9 * (-2/(1/17)) * (-177/35)

Step 7: Divide the fraction (1/17): -4.9 * (-2 * 17) * (-177/35)

Step 8: Perform the multiplication: -4.9 * (-34) * (-177/35)

Step 9: Simplify further: 6618/35

Finally, the result of the expression is approximately:

6618/35 ≈ 189.0857142857143