1. In which ofthe following situations, does the list of numbers involved is in the form of a GP? Salary of Sharmila: when her salary is 5,00,000 for the first year and expected
Number ofbricks needed to make each step: if the stair case has total 30 steps,
provided that bottom step needs 100 bricks and each successive step needs 2
to receive yearly increment of 10%.
bricks less than the previous step.
24 cm
Perimeter of the each
triangle: when the mid
points of sides of an
equilateral triangle
whose side is 24 cm are
joined to form another
triangle, whose mid
points in turn are joined
to form still another
triangle and the process
continues indefinitely.
E 0E =
24 cm
24 cm

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.

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?