Answer: The answer is -4/5 hope this helps :D
Answer:
You can solve this by substitution method
substitute the value of Y from 2nd equation in the first thet will give you the value of X and once your find the value of X you can substitute that value in any of the equation and get the answer
Answer:C 2.0< t < 2.50
Step-by-step explanation:
Diameter of circular lake = 2 miles
Radius of the circular lake= 1 mile
Circumference of the circular lake = 2 pi
Speed of Joanna = 3mph
Time t= distance/ speed = circumference of lake / speed
t = 2 pi/ 3 = (2 × 3.142) / 3
t = 6.284/3 = 2.09
This is greater than 2 but less than 2.5, therefore statement C is correct
Answer:
They should not be exactly the same but they should be close.
Step-by-step explanation:
The first thing that we must take into account is the following:
Experimental probability is the result of an experiment, and theoretical probability is based on the mathematical model developed in probability theory. With the above, we can affirm that the precision of the results of the experiments depends directly on the sample size of the experiment and the precision is greater when the sample size is greater.
This means that the odds are most likely not the same, they must be very close since it has been repeated a considerable number of times and the more times it is done the closer they will be to being the same.
Using the t-distribution, it is found that the 95% confidence interval for the population mean rating for Miami is (5.73, 6.95).
<h3>What is a t-distribution confidence interval?</h3>
The confidence interval is:
In which:
- is the sample mean.
- s is the standard deviation for the sample.
The critical value, using a t-distribution calculator, for a <u>two-tailed 95% confidence interval</u>, with 50 - 1 = <u>49 df</u>, is t = 2.0096.
Considering the given sample, the other parameters are given as follows:
Hence, the bounds of the interval are:
More can be learned about the t-distribution at brainly.com/question/16162795
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