Which renewable energy source has become cost-competitive with fossil fuels? (a) Tidal, (b) Geothermal, (c) Wind, (d) Solar photovoltaic, (e) Concentrated solar.

The process of fusion (a) splits atoms. (b) requires extremely high temperatures. (c) uses plutonium instead of uranium. (d) requires several radioactive elements. (e) does not produce radioactive waste.

Prove that the set of discontinuous real-valued functions defined on $\mathbb{R}$ (for example,

$$\mathbf{f}(x)=\left\{\begin{array}{ll}{0} & {\text { if } x \leq 0} \\ {1} & {\text { if } x>0}\end{array}\right.$$

) with the usual function operations is not a subspace of the vector space of all real-valued functions with domain $\mathbb{R}$.

Which is NOT a benefit of solar energy systems? (a) They typically produce electricity during peak demand. (b) They require very little maintenance. (c) They produce electricity cheaply. (d) They do not produce pollution while generating electricity. (e) They can easily be used for small-scale applications.

Compare the organs of a flower in the table below. Give the location and function for each organ.

$$\begin{matrix} \text{Organ} & \text{Location} & \text{Function}\\ \text{Petal} & \text{}\\ \text{Stamen} & \text{}\\ \text{Sepal} & \text{}\\ \text{Pistil} & \text{}\\ \end{matrix}$$

Consider the dissociation of iodine: I2 (g) <=> 2I (g) A 1.00-g sample of I2 is heated to 1200 degree C in a 500-mL flask. At equilibrium the total pressure is 1.51 atm. Calculate Kp for the reaction.

Use a unit circle diagram to find: a. $\cos \left(\frac{3 \pi}{2}\right) \quad \text { and } \quad \sin \left(\frac{3 \pi}{2}\right)$ b. $\cos \left(-\frac{\pi}{2}\right) \quad \text { and } \quad \sin \left(-\frac{\pi}{2}\right)$

In lines 3-8, the speaker continues to think about his comparison. What image does he use to show that summer weather is unpredictable?

Unscramble the group of letter to spell an important term: An animal that eats plants and other animals _____ (evormoni)

Sketch the figure described. Explain how to construct it. Then do the construction. $\overrightarrow{ST}$ bisects right $\angle PSQ$.

Use the transition matrix.

$$\begin{matrix} \text{} & \text{A B}\\ \text{}{P=\begin{array}{l}{A} \\ {B}\end{array}} & \text{}{\left[\begin{array}{rr}{.7} & {.3} \\ {.1} & {.9}\end{array}\right]}\\ \end{matrix}$$

to find $S_{1}$ and $S_{2}$ for the indicated initial state matrix $S_{0}$.

$$S_{0}=\left[\begin{array}{ll}{1} & {0}\end{array}\right]$$

Solve each formula for the indicated variable. $I=P r t$; for P.

Find the value. 6x + 3 when x = -1/2

Show, by integrating the Maclaurin series for

$$f ( x ) = \frac { 1 } { \sqrt { 1 - x ^ { 2 } } },$$

that for |x| < 1,

$$\sin ^ { - 1 } x = x + \sum _ { n = 1 } ^ { \infty } \frac { 1 \cdot 3 \cdot 5 \cdot \cdot \cdot ( 2 n - 1 ) } { 2 \cdot 4 \cdot 6 \cdots ( 2 n ) } \frac { x ^ { 2 n + 1 } } { 2 n + 1 }$$