Question

1) 2/47*9.4+5.6 2)2.1-6.2*3/31 3)5.8:9 2/3+8.04 Помогите срочно

Answer 1

2.1-6.2*3/=1.5
3)5.8:9 2/3+8.04=4758863

Answer 2

1) To solve the expression 2/47 * 9.4 + 5.6, we can follow the order of operations, which is commonly known as PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction). In this case, we first perform the multiplication and division from left to right, and then the addition.

2/47 * 9.4 = 0.0404 (rounded to four decimal places) 0.0404 + 5.6 = 5.6404

Therefore, the value of the expression 2/47 * 9.4 + 5.6 is approximately 5.6404.

2) To solve the expression 2.1 - 6.2 * 3/31, we again follow the order of operations.

6.2 * 3 = 18.6 18.6 / 31 = 0.6 (rounded to one decimal place) 2.1 - 0.6 = 1.5

Therefore, the value of the expression 2.1 - 6.2 * 3/31 is 1.5.

3) To solve the expression 5.8:9 + 2/3 + 8.04, we once again follow the order of operations.

5.8 / 9 = 0.6444 (rounded to four decimal places) 2/3 = 0.6667 (rounded to four decimal places) 0.6444 + 0.6667 = 1.3111 (rounded to four decimal places) 1.3111 + 8.04 = 9.3511 (rounded to four decimal places)

Therefore, the value of the expression 5.8:9 + 2/3 + 8.04 is approximately 9.3511.

I hope this helps! Let me know if you have any further questions.