In the third excerpt, what does Juliek play at Gleiwitz? Who is his audience?

Use the third and fourth laws of exponents to simplify (x$^3$y$^4$)$^3$.

Express the decimal as a percent. Round to the nearest tenth, if necessary. 12.54

The earlier exercise tackle about researchers that collected data on a random sample of 20 toddlers observed over several months. The equation of the least-squares regression line is $\hat{y}$=560.65-3.0771x, where x= the mean time a child spent at the lunch table (minutes) and y= the mean number of calories consumed. The standard error of the slope is $\mathrm{SE}_b$=0.8498 and the conditions for inference are met.

Explain how the interval from the previous part is consistent with your conclusion in the earlier exercise.

Round to the nearest tenth. 44.45

Determine if the statement is true or false, and justify your answer. If $\left\{\mathbf{u}_{1}, \mathbf{u}_{2}, \mathbf{u}_{3}, \mathbf{u}_{4}\right\}$ does not span $R^3$, then neither does $\left\{\mathbf{u}_{1}, \mathbf{u}_{2}, \mathbf{u}_{3}\right\}.$

Round to the nearest thousand. 34,501

Proposez une solution pour le probleme suivant : Modele : Il y a beaucoup de chomage . Quand il y a beaucoup de chomage il est necessaire de creer des emplois

Il y a des problemes de l environnement

A researcher estimates the following model relating the return on a firm's stock as a function of its price-to-earnings ratio and its price-to-sales ratio: Return $=\beta_0+\beta_1 \mathrm{P} E+\beta_2 \mathrm{P} / \mathrm{S}+\varepsilon$. A portion of the regression results is shown in the accompanying table.

$$\begin{array}{|l|c|c|c|c|c|} \hline \text { ANOVA } & \text { df } & \text { SS } & \text { MS } & \text { F } & \text { Significance F } \\ \hline \text { Regression } & 2 & 918.746 & 459.3728 & 2.817 & 0.077 \\ \hline \text { Residual } & 27 & 4402.786 & 163.0661 & & \\ \hline \text { Total } & 29 & 5321.532 & & & \\ \hline \end{array}$$

$$\begin{array}{|l|c|c|c|c|} \hline & \text { Coefificients } & \text { Standard Error } & \text { tStat } & \text { p-value } \\ \hline \text { Intercept } & -12.0243 & 7.886858 & -1.525 & 0.139 \\ \hline \text { PE } & 0.1459 & 0.4322 & 0.338 & 0.738 \\ \hline \text { P/S } & 5.4417 & 2.2926 & 2.374 & 0.025 \\ \hline \end{array}$$

a. Specify the sample regression equation.

b. At the $10 \%$ significant level, are P/E and P/S jointly significant? Show the relevant steps of the test.

c. Are both explanatory variables individually significant at the $10 \%$ significance level? Show the relevant steps of the test.

True or false: The line that joins the midpoints of two sides of a triangle is parallel to the third side.

Choose the best answer. Which type of data display would best show the number of people at an amusement park that chose the roller coaster as their favorite ride? A. bar graph B. circle graph C. histogram D. line graph

A line with direction vector A is said to be parallel to a plane M if A is parallel to M. A line containing (1,2,3) is parallel to each of the planes given by x+2y+3z=4, 2x+3y+ 4z=5. Find a vector parametric equation for this line.

Select an appropriate type of display for data gathered about each situation. Justify your reasoning. the prices of five different brands of tennis shoes at an athletic store

Replace the question mark with the appropriate value. 1 mm³= ? dm³