Determine whether each mathematical sentence is a quadratic inequality or not. Write QI if the mathematical statement is a quadratic inequality and NQI if not.
[tex]1.)[/tex] 2x² - 3 = 0
[tex]2.)[/tex] (x + 1)(x - 3) ≥ 0
[tex]3.)[/tex] 3s + 9 ≤ 21
[tex]4.)[/tex] 3 - 2x² = 0
[tex]5.)[/tex] r² + 10r ≤ -16
[tex]6.)[/tex] x(x - 3) + 1 ≥ 0
[tex]7.)[/tex] [tex] \sqrt{8x} [/tex] - 7 ≤ 0
[tex]8.)[/tex] m² = 6m - 7
[tex]9.)[/tex] 3w² + 12w < 0
[tex]10.)[/tex] (x - [tex] \frac{1}{2} [/tex])² - 1/4 ≤ 0
Quadratic Inequality having symbols of greater than (>), less than (<), greater than or equal (≥), and less than or equal (≤).
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