Question

Сравните значения выражений

Answer 1

А=-3,5 б=12,6
1)12а-5б=12*(-3,5)-5*12,6=-42-63=-105
2)8а-2б=8*(-3,5)-2*(12,6)=-28-25,2=-53,2
1<2

Answer 2

Comparing the Meanings of Expressions

To compare the meanings of the expressions provided, let's break them down and analyze each one individually:

1. (3+30) 63: This expression represents a mathematical calculation where 3 is added to 30, resulting in 33. However, it is unclear how the number 63 is related to this expression without further context.

2. 3+30 63: This expression is similar to the previous one, representing a mathematical calculation where 3 is added to 30. The result of this calculation is 33, but it is unclear how the number 63 is related to this expression without further context.

3. 1 1: This expression seems to represent a comparison between two values, both of which are 1. However, without additional context, it is unclear what the purpose or meaning of this comparison is.

4. 1/2+lg(3) lg(19)-lg(2) 1+2lg(3) 2lg(19)-2lg(2) lg(3^2*10) lg(19^2/2^2): This expression involves mathematical calculations using logarithms and arithmetic operations. Without further context, it is difficult to determine the exact meaning or purpose of this expression.

5. 19/45 7/15: This expression represents a comparison between two fractions, 19/45 and 7/15. The meaning of this comparison depends on the context in which it is used.

6. boolean(${question_one}): This expression seems to involve a boolean operation using a variable named "question_one." The exact meaning of this expression depends on the programming or scripting language in which it is used.

7. coalesce(${question_one}, ${question_two}): This expression involves the coalesce function, which returns the first non-null value from a list of arguments. The meaning of this expression depends on the values of the variables "question_one" and "question_two".

8. concat(${question_one}, ' and ', ${question_two}): This expression involves the concatenation of strings using the concat function. The meaning of this expression depends on the values of the variables "question_one" and "question_two".

9. contains(${question_one}, 'red'): This expression involves the contains function, which checks if a string contains a specific substring. The meaning of this expression depends on the values of the variables "question_one" and the substring "red".

10. count(repeat): This expression involves the count function, which counts the number of occurrences of a specific element or condition. The meaning of this expression depends on the context in which it is used and the definition of the "repeat" variable.

Please provide additional context or specify which expressions you would like to compare in more detail, and I will be happy to assist you further.