Question

0.7*(-3)³+2.6*(-3)²+5= 47,3 правильный ответ?

Answer 1

У меня получилось 14,5

Answer 2

ОТВЕТ 1,7
НЕТ НЕПРАВИЛЬНЫЙ ОТВЕТ

Answer 3

Calculation of the Expression

To calculate the given expression, we can use the order of operations (PEMDAS/BODMAS) where we first perform the operations inside the parentheses, then exponents, multiplication and division (from left to right), and finally addition and subtraction (from left to right).

The given expression is: 0.7*(-3)³ + 2.6*(-3)² + 5

Let's calculate each part step by step.

1. 0.7*(-3)³ - First, we calculate the value of (-3)³, which is -27. - Then, we multiply -27 by 0.7, resulting in -18.9.

2. 2.6*(-3)² - First, we calculate the value of (-3)², which is 9. - Then, we multiply 9 by 2.6, resulting in 23.4.

3. Adding 5 - Finally, we add 5 to the sum of the previous two results.

Let's perform the calculations.

Result

The result of the given expression is: 0.7*(-3)³ + 2.6*(-3)² + 5 = -18.9 + 23.4 + 5 = 9.5

Therefore, the correct answer to the given expression is 9.5.