6. Multiple Choice. Select only one answer. Tyler is simplifying the expression 6 - 2x + 5 + 4x.
Sele
by
Here is his work:
6 - 2x + 5 + 4x
Step 1: 6 + (- 2x) + 5 + 4x
Step 2: 6 + 5 + 4x + (- 2x)
Step 3: 11 + 2x
Step 4: 13x
When reviewing his work, which of the following is true?
A. There is an error in Step 1
B. There is an error in Step 2
C. There is an error in Step 3
D. There is an error in Step 4
E. None of the above

PlZ hel

Agallon of apple juice cost $7 a pack of eight 4.23oz box of apple juice $2.39 which is a better deal

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3

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?