Question

(2 - 5 +1 )∙(0,81 :0,4) решение пж

Answer 1

(2-5+1)•(0,81:0,4)=(-3+1)•2,025=-2•2,025=-4,05

Answer 2

Ответ:

-4.05

Пошаговое объяснение:

(2-5+1)*(0.81:0.4)=-2*(8.1:4)=-2*2.025=-4.05

Answer 3

To solve the expression, follow the order of operations (PEMDAS/BODMAS) which stands for Parentheses/Brackets, Exponents/Orders, Multiplication, and Division, and Addition/Subtraction.

Let's break down the expression step by step:

Step 1: Solve the operations inside the parentheses. (2 - 5 + 1) = -2

Step 2: Solve the division operation. 0.81 : 0.4 = 2.025

Step 3: Now, multiply the results from Step 1 and Step 2: -2 * 2.025 = -4.05

So, the solution to the expression (2 - 5 + 1)∙(0.81 : 0.4) is -4.05.