Examine the shape of the horizon at the Apollo 17 landing site. What processes shape mountains on Earth that have not affected mountains on the Moon?

Find the $x$-coordinate(s) of the point(s) on the graph of the function at which the tangent line has the indicated slope.

$$f(x)=\cot x ; \quad m_{\tan }=-2$$

Why are detergents better than soaps for laundering?

Which of the following statements are equivalent? Which ones are correctly indented?

(a)

if i > 0:
    x = 0
    y = 1
else:
    y = 0
    z = 0

(b)

if i > 0:
    x = 0
  y = 1
else:
    y = 0
    z = 0

(c)

if i > 0:
  x = 0
  y = 1
else:
    y = 0
    z = 0

(d)

if i > 0:
  x = 0
  y = 1
else:
    y = 0
  z = 0

Why is there a relatively high frequency of dense fog along the Pacific Coast?

Find the reciprocal.

1

Find the reciprocal.

$$3 \frac{1}{2}$$

According to the Christian Science Monitor, 80 percent of egg cartons are imprinted with the logo "Animal Care Certified.."27 This designation means that the United Egg Producers, the egg industry's trade group, has certified egg producers according to internal guidelines.

What do you think the typical consumer interprets "Animal Care Certified" to mean?

Find the reciprocal of the number.

-1/5

The chemical factors that determine traits are called

a. chromosomes.

b. genes.

c. traits.

d. characters.

Graph each function. Based on the graph, state the domain and the range and find any intercepts.

$$f(x)=\left\{\begin{array}{ll}{-\ln x} & {\text { if } 0<x<1} \\ {\ln x} & {\text { if } x \geq 1}\end{array}\right.$$

For each of the following pairs of ions, write the symbol for the formula of the compound they will form. (a) $\mathrm{Ca}^{2+}, \mathrm{S}^{2-}$ (b) $\mathrm{NH}_4^{+}, \mathrm{SO}_4^{2-}$ (c) $\mathrm{Al}^{3+}, \mathrm{Br}^{-}$ (d) $\mathrm{Na}^{+}, \mathrm{HPO}_4^{2-}$ (e) $\mathrm{Mg}^{2+}, \mathrm{PO}_4^{3-}$

Given the following thermochemical equations,

$$\begin{array}{cc} \mathrm{CaO}(s)+\mathrm{Cl}_2(g) \longrightarrow \mathrm{CaOCl}_2(s) & \Delta H^{\circ}=-110.9 \mathrm{~kJ} \\ \mathrm{H}_2 \mathrm{O}(l)+\mathrm{CaOCl}_2(s)+2 \mathrm{NaBr}(s) \longrightarrow & 2 \mathrm{NaCl}(s)+\mathrm{Ca}(\mathrm{OH})_2(s)+\mathrm{Br}_2(l) \\ \Delta H^{\circ}=-60.2 \mathrm{~kJ} \\ \mathrm{Ca}(\mathrm{OH})_2(s) \longrightarrow H^{\circ}=+65.1 \mathrm{~kJ} \end{array}$$

calculate the value of $\Delta H^{\circ}$ (in kilojoules) for the reaction

$$\frac{1}{2} \mathrm{Cl}_2(g)+\mathrm{NaBr}(s) \longrightarrow \mathrm{NaCl}(s)+\frac{1}{2} \mathrm{Br}_2(l)$$

Calculate.

$$\int_0^{\pi / 2} \int_0^{3 \sin \theta} r^2 d r d \theta$$