Question

А)-2x,если x=15;x=-5,5;x=0,8;x=-5/6

Answer 1

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Answer 2

To evaluate the expression -2x for different values of x, simply substitute the given values of x into the expression:

1. For x = 15: -2 * 15 = -30

2. For x = -5.5: -2 * (-5.5) = 11

3. For x = 0.8: -2 * 0.8 = -1.6

4. For x = -5/6: -2 * (-5/6) = 5/3 or approximately 1.6667

So, the values of -2x for the given values of x are: -2x for x = 15: -30 -2x for x = -5.5: 11 -2x for x = 0.8: -1.6 -2x for x = -5/6: 5/3 or approximately 1.6667