Answer:
b=7
Step-by-step explanation:
We want to determine the positive base b in which:
The easiest way to approach this is to convert all the numbers to base 10.
Next, we factorize the resulting expression.
The positive value of b for which the equality hold is 7.
Answer:
No. The data in this study were not based on a random method. This is a key requirement for an inference to be made from the two-sample t-test.
Step-by-step explanation:
1. Hayden can use the two-sample t-test (also known as the independent samples t-test)to find out if there was a difference in the time spent in the checkout time between two grocery stores and to conclude whether the difference in the average checkout time between the two stores is really significant or if the difference is due to a random chance. There are three conditions to be met when using the two-sample t-test.
2. The first condition is that the sampling method must be random. This requirement was not met in this study. Each customer from each store should have an equal chance of being selected for the study. This was not achieved.
3. The distributions of the sample data are approximately normal. This is achieved with a large sample size of 30 customers selected for each study.
4. The last but not the least condition is the independence of the sample data. Sample data here is independent for both samples.
Answer:
alternate interior angles are always congruent.
Step-by-step explanation:
- Consecutive [Same-side] exterior angles are always supplementary.
- Consecutive [Same-side] interior angles are always supplementary.
- Corresponding angles are always congruent.
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Answer:
0.45 lbs
Step-by-step explanation:
2 1/4 can be converted to the decimal: 2.25
2.25÷5 is how you will set this problem up, because 2.25 lbs of candy is being divided amongst 5 people.
0.45 lbs is the answer
Answer:
domain = (0,5,7)
range = (-5,1,5,7)
Step-by-step explanation:
domains are the x in (x,y) , and ranges are y in the (x,y) relations.
