15 Seerosen
Auf einem 8 ha großen See befindet sich ein 100 m2 großes Feld von Seerosen. Jährlich
verdoppelt sich diese Fläche. Wenn ein See vollständig mit Seerosen bedeckt ist, stirbt
er. Wann ist der See vollständig bedeckt? Wann ist er halbvoll bedeckt?
Als er halbvoll bedeckt ist, bemerkt eine Spaziergängerin: „Oh, wie schön, diese Seerosen!"
Was würdest du ihr erzählen? Nimm Bezug zum Zitat von Hoimar von Ditfurth.

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15

1. the manager of collins import autos believes the number of cars sold in a day (q) depends on two factors: (1) the number of hours the dealership is open (h) and (2) the number of salespersons working that day (s). after collecting data for two months (53 days), the manager estimates the following log-linear model: q 4 equation 1 a. explain, how to transform the log-linear model into linear form that can be estimated using multiple regression analysis. the computer output for the multiple regression analysis is shown below: q4 table b. how do you interpret coefficients b and c? if the dealership increases the number of salespersons by 20%, what will be the percentage increase in daily sales? c. test the overall model for statistical significance at the 5% significance level. d. what percent of the total variation in daily auto sales is explained by this equation? what could you suggest to increase this percentage? e. test the intercept for statistical significance at the 5% level of significance. if h and s both equal 0, are sales expected to be 0? explain why or why not? f. test the estimated coefficient b for statistical significance. if the dealership decreases its hours of operation by 10%, what is the expected impact on daily sales?

Every night nathan has to read for at least 25 minutes write and inequality that shows how long nathan can read each night