Step-by-step explanation:
4w (w - 3) = 24
4w^2 - 12w = 24
4w^2 - 12w - 24 = 0
use calculator, EQN if using Casio
the answer will be
w = _____ w = _____
A quick way to answer all 1-10 is to multiply the starting price by 1.##. So for number 1 the equation would be 18 x 1.07 which equals $19.26. Question 2 would be
14 x 1.20 which equals $16.80. I think you got it from here.
Answer:
100 points
Step-by-step explanation:
-75 + 200 = 125
125 - 25 = 100
Answer:
One can be 95% confident that the drive-through service times of fast-food chain is between 169 seconds and 172 seconds.
Step-by-step explanation:
The confidence interval gives a range of value for the population mean or parameter, which is calculated from the statistic value of the data (that is sample statistic). This range gives the interval which is associated with a certain level of confidence for which the interval will contain the true value of the unknown parameter (true value). In the scenario above, the associated confidence level is 95%.Hence, we can be 95% confident that the true value will be continued with the interval (169 ; 172)
