4. What are some of the traditional lifeways and peoples?

Add using only base 3 numerals. \( 20100_{3}+22200_{3}=\square \)

\( \overline { \sin ( \overline { z } ) } = \sin ( \overline { z } ) \)

b) \( \left(2 \frac{1}{3} \times 1 \frac{1}{2}\right)-\left(\sqrt{\frac{4}{25}} \div \frac{2}{15}\right) \)

Laplace \( \begin{array}{r}f^{\prime \prime}(t)-5 f^{\prime}(t)+6 f(t)=1 \text { where } \\ f(0)=0 \text { and } f^{\prime}(0) \\ =1\end{array} \)

In the formula for volume of a right cone, solve for the variable \( h: V=\frac{1}{3} \pi r^{2} h \) Note: In this formula, \( V \) is volume, \( h \) is height, and \( r \) is radius of the base of the cone. \( h=\frac{3 \pi V}{r^{2}} \) \( h=\frac{3 r^{2} V}{\pi} \) \( h=\frac{V}{3 \pi r^{2}} \) \( h=\frac{3 V}{\pi r^{2}} \)