Question

A) x+3,2 при х = -3,2 б)-5х при х = -2целых 8/15 в) 12х - 7 при х =0,05

Answer 1

А)-3.2+3.2=0
б)-5•(-2ц.8/15)=-38/15•(-5)=38/3
в)12•0.05-7=0.6-7=-6.4

Answer 2

А) 6,4

Б) точно не знаю

В) -6,4

Answer 3

To evaluate the given expressions for different values of x, simply substitute the given values of x into each expression. Let's calculate the values for each expression:

A) x + 3 For x = -3: -3 + 3 = 0

For x = 2: 2 + 3 = 5

B) -5x For x = -2 8/15: -5 * (-2 8/15) = 5 * (2 8/15) = 5 * (2 + 8/15) = 5 * (30/15 + 8/15) = 5 * (38/15) = 38/3 ≈ 12.67

C) 12x - 7 For x = 0.05: 12 * 0.05 - 7 = 0.6 - 7 = -6.4

So, the values of each expression for the given values of x are:

A) For x = -3: 0 For x = 2: 5

B) For x = -2 8/15: 38/3 ≈ 12.67

C) For x = 0.05: -6.4