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  1

Step-by-step explanation:

The expression in parentheses is always positive, so raising it to the 0 power gives a value of 1. (Any non-zero value to the zero power is 1.)

Then the expression reduces to ...

  10² -99 = 100 -99 = 1

The value of the expression is 1.

Additional comment

The discriminant of the quadratic is ...

  b² -4ac = (1/5)² -4(1)(√56) ≈ -29.89

The graph of it is a parabola opening upward. The discriminant indicates the expression has no real zeros, so the graph does not cross the x-axis. It must lie entirely above the x-axis. Hence the quadratic expression is always positive.

1. 2

2. 11

3. 5

4. 6

5. 7

6. 5

7. -1

8. 1

step-by-step explanation: