Answer: x < 2
Step-by-step explanation:
12 - 5x > 8 - 3x
Now, add 5x on both sides
12 - 5x + 5x > 8 - 3x + 5x
12 > 8 + 2x
Now, subtracting by 8 on both sides
12 - 8 > 8 - 8 + 2x
4 > 2x
Now, dividing by 2 on both sides
4/2 > 2x/2
2 > x, which is same as x < 2.
Answer:
A. 17
B. 16
Step-by-step explanation:
F(5)
5 > 2 so you plug the 5 into 3x+2
F(-2)
-5 < -2 < 2 so you plug the -2 into (x-2)^2
Answer:
a) See answer below.
b) Equal chance of being selected.
c) Accuracy
Step-by-step explanation:
a. How might the strategy of leaving out cell phones affect the goal of obtaining a random sample of voters of consumers?
This strategy might affect the goal of obtaining a random sample by not choosing the sample from all the population of the USA. People who don't have a landline an only have a cell phone will have zero chance of being selected and therefore the polls will not be accurate.
b. Which criterion of random sampling is most likely to be violated by the problems you identified in part (a)?
Equal chance of being selected, since the people who only have cell phones will not be selected for the poll, this criterion of random sampling will be violated.
c. Which attribute of estimated consumer preference is most affected by the problem you identified in (a)
Accuracy. The definition of accuracy is how close a value really is to its true value.
By not selecting the sample from all the population, the results of the poll will likely be biased and therefore they might not be close to the actual preferences of consumers or voters.
Start by getting all terms with x on one side and all terms without on the other.
6x+7=8x-15
subtract 6x from both sides
7=2x-15
add 15 to both sides
22=2x
divide both sides by 2
11=x