Question

4) 2x + 8/x+1 при x = 3;0,5; 1; 3;​

Answer 1

Объяснение:

$2 \times 3 + 8 \div 3 + 1 = \\ 6 + 2.6 + 1 = 9.6$

$2 \times 0.5 + 8 \div 0.5 + 1 = \\ = 1 + 16 + 1 = 18$

$2 \times 1 + 8 \div 1 + 1 = 2 + 8 + 1 = 11$

Answer 2

Ответ:

(2*3+8)/3+1=6+2.6+1=9.6

(2*0.5+8)/0.5+1=1+16+1=18

(2*1+8)/1+1=2+8+1=11

Answer 3

To evaluate the expression 2x + 8/(x + 1) for different values of x, let's substitute each value into the expression:

For x = 3: 2(3) + 8/(3 + 1) = 6 + 8/4 = 6 + 2 = 8

For x = 0.5: 2(0.5) + 8/(0.5 + 1) = 1 + 8/(0.5 + 1) = 1 + 8/1.5 = 1 + 5.333... = 6.333...

For x = 1: 2(1) + 8/(1 + 1) = 2 + 8/2 = 2 + 4 = 6

For x = 3: 2(3) + 8/(3 + 1) = 6 + 8/4 = 6 + 2 = 8

Therefore, the values of the expression 2x + 8/(x + 1) for x = 3, 0.5, 1, and 3 are 8, 6.333..., 6, and 8 respectively.