Which of the following is true for the text below? \[ \text { What kind of font is this? } \]

When exposed to UV light, chlorine and hydrogen gases explosively combine to form hydrogen chloride gas. Assuming a sufficiently strong reaction vessel how much HCl (in atm) can be formed when hydrogen and chlorine are each at 5.4 atm (assume volume and temperature are constant)?

Use the graph to determine the domain of \( y=-2 \cot x \). A. \( \left\{x \left\lvert\, x \neq \frac{k \pi}{2}\right., k\right. \) is an odd integer \( \} \) B. \( \left\{x \left\lvert\, x \neq \frac{k \pi}{4}\right., k\right. \) is an odd integer \( \} \) C. All real numbers D. \( \{x \mid x \neq k \pi, k \) is an integer \( \} \)

4. \( 12-7 x+x^{2}= \) 5. \( 2 x^{2}+3 x-2= \) 6. \( 20 x^{2}+x-1= \)

The graph below represents the relationship between the amount of teams and the amount of volleyball players there are.

esión \( (-1)^{n}+(-1)^{n+1} \) es