Find the exact value of the logarithm without using a calculator. \( \log _{1 / 2} 64 \) \( \log _{1 / 2} 64=\square \) (Type an integer or a simplified fraction.)

19. Эcenreruse: \( \frac{4^{0.5}}{0,5^{4}}= \) A) 4 Б) 8 B) 16 D) 32 D) 64

de \( \frac{2}{3} \cdot\left(6-\frac{1}{4}\right) ? \)

Use the properties of logarithms to expand the expression. \( \ln \left(5 m^{6}\right) \) \( \ln \left(5 m^{6}\right)=\square \)

AUTOEVALUACION Opera. \[ (-3)^{-2}+\left(\frac{3}{4}\right)^{-1}-2^{-3}\left(1-\frac{1}{2}\right)^{-2} \]

Determine whether the following equation defines \( y \) as a function of \( x \). \[ \begin{array}{l}x^{2}+y^{2}=121 \\ \text { Yes noes the equation } x^{2}+y^{2}=121 \text { define } y \text { as a function of } x \text { ? } \\ \text { No }\end{array} \]