Directions: Always, sometimes, or never. 1. Natural numbers are integers.
2. Irrational numbers are rational numbers.
3. Rational numbers are real numbers.
4. Square roots are rational numbers.
(Also please help on the other recent question)

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅