A population of bacteria doubles every 3 hours. If you start with 500 bacteria, how many will there be after 9 hours?

(Q7; 2,6 балла) Число пловцов равно \( \frac{9}{17} \) частям футболистов. Найдите отношение числа футболистов к числу пловцов. \( 17: 9 \) \( 9: 17 \) \( 9: 8 \) \( 17: 26 \)

4. Evaluate each of the following expressions for the given values of \( x \) and \( y \). a. \( 5 x-|x-3|, x=-5 \) b. \( |x|-x+9, x=3 \) c. \( |x+y|-|x|, x=-3 \) and \( y=6 \) d. \( |x|+|y|, x=5 \) and \( y=-10 \) e. \( -3|x+6|, x=-5 \) f. \( \frac{|\mathrm{x}|-|5 \mathrm{y}|}{|\mathrm{x}+\mathrm{y}|}, x=4 \) and \( y=8 \)

Which of the following statement is troe about \( f(x)=x^{2}-6 x+10 \) ? A. The line \( x=1 \) is the axis of symmetry of the graph of \( f \). B. \( f(x) \geq 2 \) for all \( x \) in the domain of \( f \). C. The vertex of the graph of \( f \) is \( (3,1) \). D. The graph of \( f \) opens downward. +

q. \( \quad \log _{3} \frac{\sqrt{3}}{9} \)

p. \( \quad \log _{3} \frac{3}{\sqrt[5]{81}} \)