Quadratic Equation : x^2 = -x + 2 Standard Form : ? (with solution) Answer: Step-by-step explanation: Heres the standard form of a quadratic equation. You just need to rewrite the equation. (You just need to transpose for it to become in standard form. Note that when transposing, the signs will be changed. Please check the order of the degree of the exponent.)
Which of this is nonmetal? a. Hydrogen B. potassium C. Silicon D. Zinc Answer: A. Hydrogen Explanation: In the periodic table what separates the metal elements from the non metal elements are metalloids, the ones underlined in red are the metalloids, to the right of that are the non metals while on the other side are the metals
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