\( z \) varies directly as the cube of \( x \) and inversely as \( y \). If \( z=221 \) when \( x=2 \) and \( y=3 \), find \( z \) if \( x=3 \) and \( y=8 \), Round your answer to two decimal places if necessary. Answer

Which of the following is the value of the function \( f(x)=\left|4 x^{2}-8\right|+2 \) given \( \mathrm{x}=2 \) ? a. 8 b. 9 c. 10 d. 11 Evaluate the function \( h(x)=|x|-11 \) given \( x=3.5 \). a. -8 b. 8 c. -9 d. 9 Give the value of the of the function \( c(x)=3 x^{2}-36 \) at \( c(5) \). a. -21 b. 14 c. 111 d. 39

(116) \( 3(\sqrt{3}+\sqrt{6})^{2}-(\sqrt{14}+\sqrt{7})^{2}-6 \)

i) \( \frac{1}{x-1}+\frac{1}{x+1}=\frac{2}{x^{2}-1} \)

ii) \( x^{3}-2 x^{2}-(2 x-1)(x-2)=0 \)

Middle term of expansion \[ \left(3 x-\frac{x^{3}}{6}\right)^{9} \]